SMC2552W-G
EliteConnect™ 2.4GHz 802.11g Wireless Access Point User Guide The easy way to make all your network connections 38 Tesla Irvine, CA 92618 Phone: (949) 679-8000 February 2004 Revision Number: R01, F2.0.
Copyright Information furnished by SMC Networks, Inc. (SMC) is believed to be accurate and reliable. However, no responsibility is assumed by SMC for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SMC. SMC reserves the right to change specifications at any time without notice. Copyright © 2004 by SMC Networks, Inc.
LIMITED WARRANTY Limited Warranty Statement: SMC Networks, Inc. (“SMC”) warrants its products to be free from defects in workmanship and materials, under normal use and service, for the applicable warranty term. All SMC products carry a standard 90-day limited warranty from the date of purchase from SMC or its Authorized Reseller. SMC may, at its own discretion, repair or replace any product not operating as warranted with a similar or functionally equivalent product, during the applicable warranty term.
LIMITED WARRANTY Customers are responsible for all shipping charges from their facility to SMC. SMC is responsible for return shipping charges from SMC to customer. WARRANTIES EXCLUSIVE: IF AN SMC PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER’S SOLE REMEDY SHALL BE REPAIR OR REPLACEMENT OF THE PRODUCT IN QUESTION, AT SMC’S OPTION.
COMPLIANCES Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
COMPLIANCES The term “IC:” before the radio certification number only signifies that Industry Canada technical specifications were met. Industry Canada - Class B This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled “Digital Apparatus,” ICES-003 of Industry Canada.
COMPLIANCES EC Conformance Declaration 0560 SMC contact for these products in Europe is: SMC Networks Europe, Edificio Conata II, Calle Fructuós Gelabert 6-8, 2o, 4a, 08970 - Sant Joan Despí, Barcelona, Spain. Marking by the above symbol indicates compliance with the Essential Requirements of the R&TTE Directive of the European Union (1999/5/ EC). This equipment meets the following conformance standards: • EN 60950 (IEC 60950) - Product Safety • EN 300 328 - Technical requirements for 2.
COMPLIANCES - In Italy the end-user must apply for a license from the national spectrum authority to operate this device outdoors. - In Belgium outdoor operation is only permitted using the 2.46 2.4835 GHz band: Channel 13. - In France outdoor operation is only permitted using the 2.4 - 2.454 GHz band: Channels 1 - 7. Safety Compliance Underwriters Laboratories Compliance Statement Important! Before making connections, make sure you have the correct cord set.
COMPLIANCES Wichtige Sicherheitshinweise (Germany) 1. Bitte lesen Sie diese Hinweise sorgfältig durch. 2. Heben Sie diese Anleitung für den späteren Gebrauch auf. 3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Verwenden Sie keine Flüssigoder Aerosolreiniger. Am besten eignet sich ein angefeuchtetes Tuch zur Reinigung. 4. Die Netzanschlu ßsteckdose soll nahe dem Gerät angebracht und leicht zugänglich sein. 5. Das Gerät ist vor Feuchtigkeit zu schützen. 6.
COMPLIANCES AC 7,5-8V, 50-60Hz nicht über oder unterschreiten sowie den minimalen Strom von 1A nicht unterschreiten. Der arbeitsplatzbezogene Schalldruckpegel nach DIN 45 635 Teil 1000 beträgt 70dB(A) oder weniger.
TABLE OF CONTENTS 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Package Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS 6 Command Line Interface . . . . . . . . . . . . . . . . . . . 6-1 Using the Command Line Interface . . . . . . . . . . . . . . . . . . . . .6-1 Accessing the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1 Console Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1 Telnet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2 Entering Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS logging facility-type . . . . . . . . . . . . . . . . . . . . . . . . . . . . show logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . sntp-server ip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . sntp-server enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . sntp-server date-time . . . . . . . . . . . . . . . . . . . . . . . . . . . sntp-server daylight-saving . . . . . . . . . . . . . . . . . . . . . . sntp-server timezone . . . . .
TABLE OF CONTENTS mac-authentication session-timeout . . . . . . . . . . . . . . . .6-58 show authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-59 Filtering Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-60 filter local-bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-60 filter ap-manage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-61 filter ethernet-type enable . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS wpa-psk-type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-95 shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-96 show interface wireless . . . . . . . . . . . . . . . . . . . . . . . . . 6-97 show station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-98 IAPP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-99 iapp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS xiv
Chapter 1 Introduction SMC’s EliteConnect 2.4GHz 802.11g Wireless Access Point (SMC2552W-G) is an IEEE 802.11b/g access point that provides transparent, wireless high-speed data communications between the wired LAN and fixed, portable or mobile devices equipped with a 802.11b, or 802.11g wireless adapter. This solution offers fast, reliable wireless connectivity with considerable cost savings over wired LANs (which include long-term maintenance overhead for cabling). Using 802.11b and 802.
Introduction The access point also supports a 54 Mbps half-duplex connection to Ethernet networks for each active channel. Package Checklist The EliteConnect 2.4GHz 802.11g Wireless Access Point package includes: • One 2.4GHz 802.11g Wireless Access Point (SMC2552W-G) • One Category 5 network cable • One RS-232 console cable • One 3.
Hardware Description Hardware Description Front Panel Antennas LED Indicator Rear Panel Security Slot Console Port RJ-45 Port, PoE Connector Reset Button 3.
Introduction Component Description Antennas The access point includes two antennas for wireless communications. The signal transmitted from both antennas is identical, but only the best signal received on one of the antennas is used. The antennas transmit the outgoing signal as a toroidal sphere, so the antennas should be adjusted to different angles to provide better coverage. For further information, see “Positioning the Antennas” on page 2-3.
Hardware Description LED Status Description LED2 Green/Amber Off: No Ethernet Link Detected or admin disable. Green On: 100Mbps Ethernet Link Detected but No Activity. Amber On: 10Mbps Ethernet Link Detected but No Activity. Green Blink: 10/100Mbps Ethernet Link Activity. LED3 (WLAN 11g) Green Off: Wireless Link admin Disabled. Green On: Associated with Network but No Activity. Green Blink: Activity. Security Slot The access point includes a Kensington security slot on the rear panel.
Introduction This port uses an MDI (i.e., internal straight-through) pin configuration. You can therefore use straight-through twisted-pair cable to connect this port to most network interconnection devices such as a switch or router that provide MDI-X ports. However, when connecting the access point to a workstation or other device that does not have MDI-X ports, you must use crossover twisted-pair cable.
Features and Benefits Note that if the access point is connected to a PoE source device and also connected to a local power source through the AC power adapter, PoE will be disabled. Features and Benefits • Local network connection via 10/100 Mbps Ethernet ports or 54 Mbps wireless interface (supporting up to 64 mobile users) • IEEE 802.11b, 802.11g and 802.
Introduction • Scans all available channels and selects the best channel for each client based on the signal-to-noise ratio Applications The Wireless products offer a high speed, reliable, cost-effective solution for 10/100 Mbps wireless Ethernet client access to the network in applications such as: • Remote access to corporate network information E-mail, file transfer, and terminal emulation.
Chapter 2 Network Configuration The wireless solution supports a stand-alone wireless network configuration as well as an integrated configuration with 10/100 Mbps Ethernet LANs. Wireless network cards, adapters, and access points can be configured as: • Ad hoc for departmental, or enterprise LANs • Infrastructure for wireless LANs • Infrastructure wireless LAN for roaming wireless PCs The 802.11b and 802.11g frequency band which operates at 2.4 GHz can easily encounter interference from other 2.
Network Configuration Network Topologies Ad Hoc Wireless LAN (no AP or Bridge) An ad hoc wireless LAN consists of a group of computers, each equipped with a wireless adapter, connected via radio signals as an independent wireless LAN. Computers in a specific ad hoc wireless LAN must therefore be configured to the same radio channel.
Network Topologies Infrastructure Wireless LAN The access point also provides access to a wired LAN for wireless workstations. An integrated wired/wireless LAN is called an Infrastructure configuration. A Basic Service Set (BSS) consists of a group of wireless PC users, and an access point that is directly connected to the wired LAN.
Network Configuration Infrastructure Wireless LAN for Roaming Wireless PCs The Basic Service Set (BSS) defines the communications domain for each access point and its associated wireless clients. The BSS ID is a 48-bit binary number based on the access point’s wireless MAC address, and is set automatically and transparently as clients associate with the access point. The BSS ID is used in frames sent between the access point and its clients to identify traffic in the service area.
Network Topologies A wireless infrastructure can also support roaming for mobile workers. More than one access point can be configured to create an Extended Service Set (ESS). By placing the access points so that a continuous coverage area is created, wireless users within this ESS can roam freely. All SMC wireless network cards and adapters and SMC2552W-G wireless access points within a specific ESS must be configured with the same SSID.
Network Configuration 2-6
Chapter 3 Hardware Installation 1. Select a Site – Choose a proper place for the access point. In general, the best location is at the center of your wireless coverage area, within line of sight of all wireless devices. Try to place the access point in a position that can best cover its Basic Service Set (refer to “Infrastructure Wireless LAN” on page 2-3). Normally, the higher you place the access point, the better the performance. 2.
Hardware Installation Set the four 5/8-inch number 12 wood screws in the holes, leaving about 3 mm clearence from the wall. Position the mounting bracket over the wall screws, slide the bracket onto the screws, and then tighten down the screws. 3. Attaching the Bracket – Line up the three mounting points on the bracket with the three mounting slots on the rear of the access point, as directed in the figure on the next page.
Hardware Installation Attaching the Mounting Bracket 4. Lock the Access Point in Place – To prevent unauthorized removal of the access point, you can use a Kensington Slim MicroSaver security cable (not included) to attach the access point to a fixed object.
Hardware Installation 5. Connect the Power Cord – Connect the power adapter to the access point, and the power cord to an AC power outlet. Otherwise, the access point can derive its operating power directly from the RJ-45 port when connected to a device that provides IEEE 802.3af compliant Power over Ethernet (PoE). Note: If the access point is connected to both a PoE source device and an AC power source, PoE will be disabled. Warning: Use ONLY the power adapter supplied with this access point.
Hardware Installation position the antennas around 45 to 90 degrees from each other. The access point also compares the strength of an incoming signal on both antennas, and uses the antenna receiving the stronger signal to communicate with a wireless client. 9. Connect the Console Port – Connect the console cable (included) to the RS-232 console port for accessing the command-line interface.
Hardware Installation 3-6
Chapter 4 Initial Configuration The EliteConnect 2.4GHz 802.11g Wireless Access Point SMC2552W-G offers a variety of management options, including a web-based interface, a direct connection to the console port, or using SNMP software such as SMC’s EliteView. The initial configuration steps can be made through the web browser interface using the Setup Wizard (page 4-4). The default address is DHCP client.
Initial Configuration To connect to the console port, complete the following steps: 1. Connect the console cable to the serial port on a terminal, or a PC running terminal emulation software, and tighten the captive retaining screws on the DB-9 connector. 2. Connect the other end of the cable to the RS-232 serial port on the access point. 3. Make sure the terminal emulation software is set as follows: • Select the appropriate serial port (COM port 1 or 2). • Set the data rate to 9600 baud.
Initial Setup through the CLI Initial Configuration Steps Logging In – Enter “admin” for the user name. The default password is null, so just press [Enter] at the password prompt. The CLI prompt appears displaying the access point’s model number. Username: admin Password: smcadmin SMC Enterprise AP# Setting the IP Address – By default, the access point is configured to obtain IP address settings from a DHCP server.
Initial Configuration accessed using Telnet from any computer attached to the network. Setting the Country Code – Units sold in the United States are configured by default to use only radio channels 1-11 as defined by FCC regulations. Units sold in other countries are configured by default without a country code (i.e., 99). You must use the CLI to set the country code.
Using Web-based Management Logging In – Enter the username “admin,” the password “smcadmin,” and click LOGIN. For information on configuring a user name and password, refer to page 5-27. The home page displays the Main Menu.
Initial Configuration Launching the Setup Wizard – To perform initial configuration, click Setup Wizard on the home page, then click on the [Next] button to start the process. 1. Service Set ID – Enter the service set identifier in the SSID box which all wireless clients must use to associate with the access point. The SSID is case sensitive and can consist of up to 32 alphanumeric characters.
Using Web-based Management 2. Radio Channel – You must enable radio communications for 802.11b and 802.11b/g, and set the operating radio channel. Auto Channel Select – Select Enable for automatic radio channel detection. (Default: Enable) 802.11g Radio Channel: Set the operating radio channel number. (Range: 1-11) Note: Available channel settings are limited by local regulations which determine which channels are available. (See “Maximum Channels” on page B-1.
Initial Configuration 3. IP Configuration – Either enable or disable (Dynamic Host Configuration Protocol (DHCP) for automatic IP configuration. If you disable DHCP, then manually enter the IP address and subnet mask. If a management station exists on another network segment, then you must enter the IP address for a gateway that can route traffic between these segments.
Using Web-based Management 5. Click the OK button to restart the access point.
Initial Configuration 4-10
Chapter 5 System Configuration Before continuing with advanced configuration, first complete the initial configuration steps described in Chapter 4 to set up an IP address for the SMC2552W-G. The SMC2552W-G can be managed by any computer using a web browser (Internet Explorer 5.0 or above, or Netscape Navigator 6.2 or above). The SMC2552W-G Access Point is DHCP enabled by default. To log into the SMC2552W-G, enter the default user name “admin” and password “smcadmin.
System Configuration The information in this chapter is organized to reflect the structure of the web screens for easy reference. However, we recommend that you configure a user name and password as the first step under advanced configuration to control management access to this device (page 5-27). Advanced Configuration The Advanced Configuration pages include the following options.
Advanced Configuration Menu Description Page Radio Interface 1 Configures the IEEE 802.
System Configuration System Identification The system information parameters for the SMC2552W-G can be left at their default settings. However, modifying these parameters can help you to more easily distinguish different devices in your network. You should set a Service Set Identification (SSID) to identify the wireless network service provided by the SMC2552W-G. Only clients with the same SSID can associate with the access point.
Advanced Configuration mode (11g), and use the ssid command to set the service set identifier. Then return to the Exec mode, and use the show system command to display the changes to the system identification settings.
System Configuration TCP / IP Settings Configuring the SMC2552W-G with an IP address expands your ability to manage the access point. A number of access point features depend on IP addressing to operate. Note: You can use the web browser interface to access IP addressing only if the access point already has an IP address that is reachable through your network. By default, the SMC2552W-G will be automatically configured with IP settings from a Dynamic Host Configuration Protocol (DHCP) server.
Advanced Configuration DHCP Client (Enable) – Select this option to obtain the IP settings for the access point from a DHCP (Dynamic Host Configuration Protocol) server. The IP address, subnet mask, default gateway, and Domain Name Server (DNS) address are dynamically assigned to the access point by the network DHCP server. (Default: Enable) DHCP Client (Enable) – Select this option to manually configure a static address for the access point. • IP Address: The IP address of the access point.
System Configuration CLI Commands for TCP/IP Settings – From the global configuration mode, enter the interface configuration mode with the interface ethernet command. Use the ip dhcp command to enable the DHCP client, or no ip dhcp to disable it. To manually configure an address, specify the new IP address, subnet mask, and default gateway using the ip address command. To specify DNS server addresses use the dns server command.
Advanced Configuration Radius Remote Authentication Dial-in User Service (RADIUS) is an authentication protocol that uses software running on a central server to control access to RADIUS-aware devices on the network. An authentication server contains a database of user credentials for each user that requires access to the network. A primary RADIUS server must be specified for the SMC2552W-G to implement IEEE 802.1x network access control and Wi-Fi Protected Access (WPA) wireless security.
System Configuration • IP Address: Specifies the IP address or host name of the RADIUS server. • Port: The UDP port number used by the RADIUS server for authentication messages. (Range: 1024-65535; Default: 1812) • Key: A shared text string used to encrypt messages between the access point and the RADIUS server. Be sure that the same text string is specified on the RADIUS server. Do not use blank spaces in the string.
Advanced Configuration CLI Commands for RADIUS – From the global configuration mode, use the radius-server address command to specify the address of the primary or secondary RADIUS servers. (The following example configures the settings for the primary RADIUS server.) Configure the other parameters for the RADIUS server. Then use the show show radius command from the Exec mode to display the current settings for the primary and secondary RADIUS servers.
System Configuration Authentication Wireless clients can be authenticated for network access by checking their MAC address against the local database configured on the access point, or by using the IEEE 802.1x network access authentication protocol to look up their MAC addresses on a RADIUS server. The 802.1x protocol can also be configured to check other user credentials such as a user name and password.
Advanced Configuration database to be set up. • Radius MAC: The MAC address of the associating station is sent to a configured RADIUS server for authentication. When using a RADIUS authentication server for MAC address authentication, the server must first be configured in the Radius window (page 5-9). • Disable: No checks are performed on an associating station’s MAC address. Local MAC Authentication – Configures the local MAC authentication database.
System Configuration • MAC Authentication Table: Displays current entries in the local MAC database. 802.1x Setup – IEEE 802.1x is a standard framework for network access control that uses a central RADIUS server for user authentication. This control feature prevents unauthorized access to the network by requiring an 802.1x client application to submit user credentials for authentication. The 802.
Advanced Configuration all associated wireless clients. If 802.1x authentication is not initiated by a client, the access point will initiate authentication. Only those clients successfully authenticated with 802.1x are allowed to access the network. When 802.1x is enabled, the broadcast and session key rotation intervals can also be configured. • Broadcast Key Refresh Rate: Sets the interval at which the broadcast keys are refreshed for stations using 802.1x dynamic keying.
System Configuration remove an entry from the table, use the address filter delete command. To display the current settings, use the show authentication command from the Exec mode.
Advanced Configuration connection settings for the RADIUS server (not shown in the following example). To display the current settings, use the show authentication command from the Exec mode.
System Configuration CLI Commands for 802.1x Authentication – Use the 802.1x supported command from the global configuration mode to enable 802.1x authentication. Set the session and broadcast key refresh rate, and the re-authentication timeout. To display the current settings, use the show authentication command from the Exec mode. SMC-AP(config)#802.1x supported SMC-AP(config)#802.1x broadcast-key-refresh-rate 5 SMC-AP(config)#802.1x session-key-refresh-rate 5 SMC-AP(config)#802.
Advanced Configuration Filter Control The access point can employ VLAN ID and network traffic frame filtering to control access to network resources and increase security. Native VLAN ID – The VLAN ID assigned to wireless clients that are not assigned to a specific VLAN by RADIUS server configuration. VLAN – Enables or disables VLAN tagging support on the SMC2552W-G.
System Configuration The user VLAN IDs must be configured on the RADIUS server for each user authorized to access the network. If a user does not have a configured VLAN ID, the access point assigns the user to its own configured native VLAN ID. When setting up VLAN IDs for each user on the RADIUS server, be sure to use the RADIUS attributes and values as indicated in the following table.
Advanced Configuration AP Management Filter – Controls management access to the SMC2552W-G from wireless clients. Management interfaces include the web, Telnet, or SNMP. • Disable: Allows management access from wireless clients. • Enable: Blocks management access from wireless clients. Ethernet Type Filter – Controls checks on the Ethernet type of all incoming and outgoing Ethernet packets against the protocol filtering table. • Disable: Access point does not filter Ethernet protocol types.
System Configuration CLI Commands for VLAN Support – From the global configuration mode use the native-vlanid command to set the default VLAN ID for the Ethernet interface, then enable VLANs using the vlan enable command. When you change the access point’s VLAN support setting, you must reboot the access point to implement the change. To view the current VLAN settings, use the show system command.
Advanced Configuration CLI Commands for Bridge Filtering – Use the filter local-bridge command from the global configuration mode to prevent wireless-to-wireless communications through the access point. Use the filter ap-manage command to restrict management access from wireless clients. To configure Ethernet protocol filtering, use the filter ethernet-type enable command to enable filtering and the filter ethernet-type protocol command to define the protocols that you want to filter.
System Configuration SNMP You can use a network management application such as SMC’s EliteView to manage the SMC2552W-G via the Simple Network Management Protocol (SNMP) from a network management station. To implement SNMP management, the SMC2552W-G must have an IP address and subnet mask, configured either manually or dynamically. Once an IP address has been configured, appropriate SNMP communities and trap receivers should be configured.
Advanced Configuration SNMP – Enables or disables SNMP management access and also enables the access point to send SNMP traps (notifications). SNMP management is enabled by default. Location – A text string that describes the system location. (Maximum length: 20 characters) Contact – A text string that describes the system contact. (Maximum length: 255 characters) Community Name (Read Only) – Defines the SNMP community access string that has read-only access.
System Configuration CLI Commands for SNMP – Use the snmp-server enable server command from the global configuration mode. To set read/write and read-only community names, use the snmp-server community command. Use the snmp-server location and snmp-server contact commands to indicate the physical location of the access point and define a system contact. The snmp-server host command defines a trap receiver host. To view the current SNMP settings, use the show snmp command.
Advanced Configuration Administration Changing the Password Management access to the web and CLI interface on the SMC2552W-G is controlled through a single user name and password. You can also gain additional access security by using control filters (see “Filter Control” on page 5-19). To protect access to the management interface, you need to configure an Administrator’s user name and password as soon as possible.
System Configuration Confirm New Password – Enter the password again for verification. CLI Commands for the User Name and Password – Use the username and password commands from the CLI configuration mode. SMC-AP(config)#username bob SMC-AP(config)#password smcadmin SMC-AP# 6-21 6-22 Upgrading Firmware You can upgrade new SMC2552W-G software from a local file on the management workstation, or from an FTP or TFTP server. New software may be provided periodically on SMC’s web site (http://www.smc.com).
Advanced Configuration Before upgrading new software, verify that the SMC2552W-G is connected to the network and has been configured with a compatible IP address and subnet mask. If you need to download from an FTP or TFTP server, take the following additional steps: • Obtain the IP address of the FTP or TFTP server where the access point software is stored. • If upgrading from an FTP server, be sure that you have an account configured on the server with a user name and password.
System Configuration Firmware Upgrade Local – Downloads an operation code image file from the web management station to the access point using HTTP. Use the Browse button to locate the image file locally on the management station and click Start Upgrade to proceed. • New firmware file: Specifies the name of the code file on the server. The new firmware file name should not contain slashes (\ or /), the leading letter of the file name should not be a period (.
Advanced Configuration CLI Commands for Downloading Software from a TFTP Server – Use the copy tftp file command from the Exec mode and then specify the file type, name, and IP address of the TFTP server. When the download is complete, the dir command can be used to check that the new file is present in the access point file system. To run the new software, use the reset board command to reboot the access point. SMC-AP#copy tftp file 1. Application image 2. Config file 3.
System Configuration System Log The SMC2552W-G can be configured to send event and error messages to a System Log Server. The system clock can also be synchronized with a time server, so that all the messages sent to the Syslog server are stamped with the correct time and date. Enabling System Logging The SMC2552W-G supports a logging process that can control error messages saved to memory or sent to a Syslog server.
Advanced Configuration Logging Level – Sets the minimum severity level for event logging. The system allows you to limit the messages that are logged by specifying a minimum severity level. The following table lists the error message levels from the most severe (Alert) to least severe (Debug). The message levels that are logged include the specified minimum level up to the Alert level. Error Level Description Alerts Immediate action needed Critical Critical conditions (e.g.
System Configuration number to use on the Syslog server. To view the current logging settings, use the show logging command. SMC-AP(config)#logging SMC-AP(config)#logging SMC-AP(config)#logging SMC-AP(config)#logging SMC-AP(config)#logging SMC-AP(config)#exit SMC-AP#show logging on level alert console host 1 10.1.0.
Advanced Configuration SNTP Server – Configures the access point to operate as an SNTP client. When enabled, at least one time server IP address must be specified. • Primary Server: The IP address of an SNTP or NTP time server that the access point attempts to poll for a time update. • Secondary Server: The IP address of a secondary SNTP or NTP time server. The access point first attempts to update the time from the primary server; if this fails it attempts an update from the secondary server.
System Configuration daylight savings. To view the current SNTP settings, use the show sntp command. SMC-AP(config)#sntp-server ip 10.1.0.
Radio Interface Radio Interface The IEEE 802.11b and 802.11g interface includes configuration options for radio signal characteristics and wireless security features. The access point can operate in three modes, IEEE 802.11b only, 802.11g only, or a mixed 802.11b/g mode. Also note that 802.11g is backward compatible with 802.11b. These interfaces are configured independently under the following web pages: • Radio Interface : 802.
System Configuration Radio Settings (802.11g) The IEEE 802.11g standard operates within the 2.4 GHz band at up to 54 Mbps. Also note that because the IEEE 802.11g standard is an extension of the IEEE 802.11b standard, it allows clients with 802.11b wireless network cards to associate to an 802.11g access point. Enable – Enables radio communications on the SMC2552W-G.
Radio Interface Radio Channel – The radio channel that the access point uses to communicate with wireless clients. When multiple access points are deployed in the same area, set the channel on neighboring access points at least four channels apart to avoid interference with each other. For example, in the United States you can deploy up to four access points in the same area (e.g., channels 1, 6, 11).
System Configuration interfere with the operation of other radio devices in the service area. (Options: 100%, 50%, 25%, 12%, minimum; Default: 100%) Maximum Station Data Rate – The maximum data rate at which a client can connect to the access point. The maximum transmission distance is affected by the data rate. The lower the data rate, the longer the transmission distance.
Radio Interface sending of a data frame. After receiving an RTS frame, the station sends a CTS (clear to send) frame to notify the sending station that it can start sending data. If the RTS threshold is set to 0, the access point never sends RTS signals. If set to 2347, the access point always sends RTS signals. If set to any other value, and the packet size equals or exceeds the RTS threshold, the RTS/CTS (Request to Send / Clear to Send) mechanism will be enabled.
System Configuration required. To view the current 802.11g radio settings, use the show interface wireless g command. SMC-AP(config)#interface wireless g Enter Wireless configuration commands, one per line.
Radio Interface SMC-AP#show interface wireless g 6-95 Wireless Interface Information =========================================================== ----------------Identification----------------------------Description : Enterprise 802.11g Access Point SSID : r&d Turbo Mode : OFF Channel : 11 (AUTO) Status : Enable ----------------802.
System Configuration Security The SMC2552W-G is configured by default as an “open system,” which broadcasts a beacon signal including the configured SSID. Wireless clients can read the SSID from the beacon, and automatically reset their SSID to allow immediate connection to the nearest access point. To improve wireless network security, you have to implement two main functions: • Authentication: It must be verified that clients attempting to connect to the network are authorized users.
Radio Interface The security mechanisms that may be employed depend on the level of security required, the network and management resources available, and the software support provided on wireless clients. A summary of wireless security considerations is listed in the following table. Security Mechanism Client Support Implementation Considerations WEP Built-in support on all 802.11b and 802.11g devices • Provides only weak security • Requires manual key management WEP with 802.1x Requires 802.
System Configuration Wired Equivalent Privacy (WEP) WEP provides a basic level of security, preventing unauthorized access to the network and encrypting data transmitted between wireless clients and the access point. WEP uses static shared keys (fixed-length hexadecimal or alphanumeric strings) that are manually distributed to all clients that want to use the network. WEP is the security protocol initially specified in the IEEE 802.11 standard for wireless communications.
Radio Interface Authentication Type Setup – Sets the access point to communicate as an open system that accepts network access attempts from any client, or with clients using pre-configured static shared keys. • Open System: Select this option if you plan to use WPA or 802.1x as a security mechanism. If you don’t set up any other security mechanism on the access point, the network has no protection and is open to all users. This is the default setting.
System Configuration Key Type – Select the preferred method of entering WEP encryption keys on the access point and enter up to four keys: • Hexadecimal: Enter keys as 10 hexadecimal digits (0 to 9 and A to F) for 64 bit keys, 26 hexadecimal digits for 128 bit keys, or 32 hexadecimal digits for 152 bit keys. • Alphanumeric: Enter keys as 5 alphanumeric characters for 64 bit keys, 13 alphanumeric characters for 128 bit keys, or 16 alphanumeric characters for 152 bit keys.
Radio Interface current security settings, use the show interface wireless g command. SMC-AP(config)#interface wireless g Enter Wireless configuration commands, one per line. SMC-AP(if-wireless g)#authentication shared SMC-AP(if-wireless g)#encryption 128 SMC-AP(if-wireless g)#multicast-cipher wep SMC-AP(if-wireless g)#key 1 128 ascii abcdeabcdeabc SMC-AP(if-wireless g)#transmit-key 1 SMC-AP(if-wireless g)#end SMC-AP(config)#no 802.
System Configuration ----------------Security---------------------------------Closed System : DISABLED Multicast cipher : WEP WPA clients : SUPPORTED WPA Key Mgmt Mode : PRE SHARED KEY WPA PSK Key Type : HEX Encryption : 128-BIT ENCRYPTION Default Transmit Key : 1 Static Keys : Key 1: ***** Key 2: EMPTY Key 3: EMPTY Key 4: EMPTY Authentication Type : SHARED ========================================================== SMC-AP# Note: The index and length values used in the key command must be the same values u
Radio Interface Wi-Fi Protected Access (WPA) WPA employs a combination of several technologies to provide an enhanced security solution for 802.11 wireless networks. The SMC2552W-G supports the following WPA components and features: IEEE 802.1x and the Extensible Authentication Protocol (EAP): WPA employs 802.1x as its basic framework for user authentication and dynamic key management. The 802.
System Configuration Note: To implement WPA on wireless clients requires a WPA-enabled network card driver and 802.1x client software that supports the EAP authentication type that you want to use. Windows XP provides native WPA support, other systems require additional software. Temporal Key Integrity Protocol (TKIP): WPA specifies TKIP as the data encryption method to replace WEP. TKIP avoids the problems of WEP static keys by dynamically changing data encryption keys.
Radio Interface multicast and broadcast traffic must be the same for all clients, therefore it restricts encryption to a WEP key. Advanced Encryption Standard (AES) Support: WPA specifies AES encryption as an optional alternative to TKIP and WEP. AES provides very strong encryption using a completely different ciphering algorithm to TKIP and WEP. The developing IEEE 802.11i wireless security standard has specified AES as an eventual replacement for TKIP and WEP.
System Configuration Multicast Cipher Mode – Selects an encryption method for the global key used for multicast and broadcast traffic, which is supported by all wireless clients. • WEP: WEP is the first generation security protocol used to encrypt data crossing the wireless medium using a fairly short key. Communicating devices must use the same WEP key to encrypt and decrypt radio signals. WEP has many security flaws, and is not recommended for transmitting highly-sensitive data.
Radio Interface The configuration settings for WPA are summarized below: WPA pre-shared key only WPA over 802.1x Authentication Type: Open System WEP (encryption): Enable1 WPA clients only: Enable WPA Mode: Pre-shared-key Multicast Cipher: WEP/TKIP/AES2 WPA PSK Type Hex: 64 characters ASCII: 8-63 characters Shared Key: 64/128/152 802.1x = Disabled3 MAC Authentication: Disabled/Local4 Authentication Type: Open System WEP (encryption): Enable1 WPA clients only: Enable WPA Mode: WPA over 802.
System Configuration the show interface wireless g command (not shown in example). SMC-AP(config)#interface wireless g Enter Wireless configuration commands, one per line. SMC-AP(if-wireless g)#authentication open SMC-AP(if-wireless g)#encryption 128 SMC-AP(if-wireless g)#wpa-clients required SMC-AP(if-wireless g)#wpa-mode pre-shared-key SMC-AP(if-wireless g)#wpa-psk-type alphanumeric SMC-AP(if-wireless g)#wpa-preshared-key ASCII asecret SMC-AP(if-wireless g)#end SMC-AP(config)#no 802.
Status Information Status Information The Status page includes information on the following items: Menu Description Page AP Status Displays configuration settings for the basic system and the wireless interface 5-57 Station Status Shows the wireless clients currently associated with the access point 5-60 Event Logs Shows log messages stored in memory 5-62 Access Point Status The AP Status window displays basic system configuration settings, as well as the settings for the wireless interface.
System Configuration • MAC Address: The physical layer address for this device. • System Name: Name assigned to this system. • System Contact: Administrator responsible for the system. • IP Address: IP address of the management interface for this device. • IP Default Gateway: IP address of the gateway router between this device and management stations that exist on other network segments. • HTTP Server: Shows if management access via HTTP is enabled.
Status Information settings, use the show interface wireless g command (see page 6-95). SMC-AP#show system 6-33 System Information ========================================================== Serial Number : A324003220 System Up time : 0 days, 4 hours, 39 minutes, 46 seconds System Name : Enterprise AP System Location : System Contact : Contact System Country Code : US - UNITED STATES MAC Address : 00-30-F1-91-91-5B IP Address : 192.168.2.51 Subnet Mask : 255.255.255.0 Default Gateway : 192.168.2.
System Configuration Station Status The Station Status window shows the wireless clients currently associated with the SMC2552W-G. The Station Configuration page displays basic connection information for all associated stations as described below. Note that this page is automatically refreshed every five seconds. 5-60 • Station Address: The MAC address of the wireless client. • Authenticated: Shows if the station has been authenticated. The two basic methods of authentication supported for 802.
Status Information procedure allows the wireless system to track the location of each mobile client, and ensure that frames destined for each client are forwarded to the appropriate access point. • Forwarding Allowed: Shows if the station has passed 802.1x authentication and is now allowed to forward traffic to the access point. • Key Type: Displays “Open System” or “Shared Key.
System Configuration Event Logs The Event Logs window shows the log messages generated by the access point and stored in memory. The Event Logs table displays the following information: • Log Time: The time the log message was generated. • Event Level: The logging level associated with this message. For a description of the various levels, see “logging level” on page 5-32. • Event Message: The content of the log message.
Status Information • WEP keys do not match: When the access point uses “Shared Key Authentication,” but the key used by client and access point are not the same, the frame will be decrypted incorrectly, using the wrong algorithm and sequence number. CLI Commands for Displaying the Event Logs – From the global configuration mode, use the show logging command.
System Configuration 5-64
Chapter 6 Command Line Interface Using the Command Line Interface Accessing the CLI When accessing the management interface for the SMC2552W-G over a direct connection to the console port, or via a Telnet connection, the access point can be managed by entering command keywords and parameters at the prompt. Using the access point’s command-line interface (CLI) is very similar to entering commands on a UNIX system.
Command Line Interface After connecting to the system through the console port, the login screen displays: Username: admin Password: smcadmin SMC Enterprise AP# Note: Command examples shown later in this chapter abbreviate the console prompt to “SMC-AP” for simplicity. Telnet Connection Telnet operates over the IP transport protocol. In this environment, your management station and any network device you want to manage over the network must have a valid IP address.
Entering Commands After you configure the access point with an IP address, you can open a Telnet session by performing these steps. 1. From the remote host, enter the Telnet command and the IP address of the device you want to access. 2. At the prompt, enter the user name and system password. The CLI will display the “SMC Enterprise AP#” prompt to show that you are using executive access mode (i.e., Exec). 3. Enter the necessary commands to complete your desired tasks. 4.
Command Line Interface You can enter commands as follows: • To enter a simple command, enter the command keyword. • To enter commands that require parameters, enter the required parameters after the command keyword. For example, to set a password for the administrator, enter: SMC Enterprise AP(config)#username smith Minimum Abbreviation The CLI will accept a minimum number of characters that uniquely identify a command. For example, the command “configure” can be entered as con.
Entering Commands list of valid keywords for a specific command.
Command Line Interface Negating the Effect of Commands For many configuration commands you can enter the prefix keyword “no” to cancel the effect of a command or reset the configuration to the default value. For example, the logging command will log system messages to a host server. To disable logging, specify the no logging command. This guide describes the negation effect for all applicable commands. Using Command History The CLI maintains a history of commands that have been entered.
Entering Commands Exec Commands When you open a new console session on access point, the system enters Exec command mode. Only a limited number of the commands are available in this mode. You can access all other commands only from the configuration mode. To access Exec mode, open a new console session with the user name “admin.” The command prompt displays as “SMC Enterprise AP#” for Exec mode.
Command Line Interface To enter the Global Configuration mode, enter the command configure in Exec mode. The system prompt will change to “SMC Enterprise AP(config)#” which gives you access privilege to all Global Configuration commands. SMC-AP#configure SMC-AP(config)# To enter Interface mode, you must enter the “interface ethernet,” or “interface wireless g” command while in Global Configuration mode.
Entering Commands Keystroke Function Ctrl-P Shows the last command. Ctrl-R Repeats current command line on a new line. Ctrl-U Deletes the entire line. Ctrl-W Deletes the last word typed. Esc-B Moves the cursor backward one word. Esc-D Deletes from the cursor to the end of the word. Esc-F Moves the cursor forward one word. Delete key or backspace key Erases a mistake when entering a command.
Command Line Interface Command Groups The system commands can be broken down into the functional groups shown below.
General Commands General Commands Command Function Mode Page configure Activates global configuration mode Exec 6-11 end Returns to Exec mode GC, IC 6-12 exit Returns to the previous configuration mode, or exits the CLI any 6-12 ping Sends ICMP echo request packets to another node on the network Exec 6-13 reset Restarts the system Exec 6-14 show history Shows the command history buffer Exec 6-14 show line Shows the configuration settings for the console port Exec 6-15 config
Command Line Interface end This command returns to the previous configuration mode. Default Setting None Command Mode Global Configuration, Interface Configuration Example This example shows how to return to the Configuration mode from the Interface Configuration mode: SMC-AP(if-ethernet)#end SMC-AP(config)# exit This command returns to the Exec mode or exits the configuration program.
General Commands ping This command sends ICMP echo request packets to another node on the network. Syntax ping • host_name - Alias of the host. • ip_address - IP address of the host. Default Setting None Command Mode Exec Command Usage • Use the ping command to see if another site on the network can be reached. • The following are some results of the ping command: – Normal response - The normal response occurs in one to ten seconds, depending on network traffic.
Command Line Interface reset This command restarts the system or restores the factory default settings. Syntax reset • board - Reboots the system. • configuration - Resets the configuration settings to the factory defaults, and then reboots the system. Default Setting None Command Mode Exec Command Usage When the system is restarted, it will always run the Power-On Self-Test.
General Commands Command Usage • The history buffer size is fixed at 10 commands. • Use the up or down arrow keys to scroll through the commands in the history buffer. Example In this example, the show history command lists the contents of the command history buffer: SMC-AP#show history config exit show history SMC-AP# show line This command displays the console port’s configuration settings. Command Mode Exec Example The console port settings are fixed at the values shown below.
Command Line Interface System Management Commands These commands are used to configure the user name, password, system logs, browser management options, clock settings, and a variety of other system information.
System Management Commands Command Function Mode logging console Initiates logging of error messages to the console GC Page 6-25 logging level Defines the minimum severity level for GC event logging 6-26 logging facility-type Sets the facility type for remote logging GC of syslog messages 6-27 show logging Displays the state of logging Exec 6-27 System Clock Sets the system clock via an NTP/ SNTP server sntp-server ip Specifies one or more time servers GC 6-28 sntp-server enable Acce
Command Line Interface country This command configures the access point’s country code, which identifies the country of operation and sets the authorized radio channels. Syntax country country_code - A two character code that identifies the country of operation. See the following table for a full list of codes.
System Management Commands Country Code Country Code Country Code Country Code Canada CA Iran IR Norway NO Ukraine UA Chile CL Ireland IE Oman OM United Arab Emirates AE China CN Israel IL Pakistan PK United Kingdom GB Colombia CO Italy IT Panama PA United States US Costa Rica CR Japan JP Peru PE Uruguay UY Croatia HR Jordan JO Philippines PH Venezuela VE Cyprus CY Kazakhstan KZ Poland PL Vietnam VN Czech Republic CZ North Korea KP Portugal PT
Command Line Interface prompt This command customizes the CLI prompt. Use the no form to restore the default prompt. Syntax prompt string no prompt string - Any alphanumeric string to use for the CLI prompt. (Maximum length: 255 characters) Default Setting SMC Enterprise AP Command Mode Global Configuration Example SMC Enterprise AP(config)#prompt RD2 RD2(config)# system name This command specifies or modifies the system name for this device. Use the no form to restore the default system name.
System Management Commands Command Mode Global Configuration Example SMC-AP(config)#system name SMC-AP SMC-AP(config)# username This command configures the user name for management access. Syntax username name name - The name of the user.
Command Line Interface password After initially logging onto the system, you should set the password. Remember to record it in a safe place. Use the no form to reset the default password. Syntax password password no password password - Password for management access. (Length: 3-16 characters, case sensitive) Default Setting smcadmin Command Mode Global Configuration Example SMC-AP(config)#password smc SMC-AP(config)# ip http port This command specifies the TCP port number used by the web browser interface.
System Management Commands Command Mode Global Configuration Example SMC-AP(config)#ip http port 769 SMC-AP(config)# Related Commands ip http server (page 6-23) ip http server This command allows this device to be monitored or configured from a browser. Use the no form to disable this function.
Command Line Interface logging on This command controls logging of error messages; i.e., sending debug or error messages to memory. The no form disables the logging process. Syntax logging on no logging on Default Setting None Command Mode Global Configuration Command Usage The logging process controls error messages saved to memory. You can use the logging level command to control the type of error messages that are stored in memory.
System Management Commands Default Setting None Command Mode Global Configuration Example SMC-AP(config)#logging host 10.1.0.3 SMC-AP(config)# logging console This command initiates logging of error messages to the console. Use the no form to disable logging to the console.
Command Line Interface logging level This command sets the minimum severity level for event logging. Syntax logging level Default Setting Error Command Mode Global Configuration Command Usage Messages sent include the selected level down to Alert level. Level Argument Description Alerts Immediate action needed Critical Critical conditions (e.g.
System Management Commands logging facility-type This command sets the facility type for remote logging of syslog messages. Syntax logging facility-type type - A number that indicates the facility used by the syslog server to dispatch log messages to an appropriate service. (Range: 16-23) Default Setting 16 Command Mode Global Configuration Command Usage The command specifies the facility type tag sent in syslog messages. (See RFC 3164.
Command Line Interface Example SMC-AP#show logging Logging Information ============================================ Syslog State : Disabled Logging Host State : Enabled Logging Console State : Disabled Server Domain name/IP : none Logging Level : Error Logging Facility Type : 16 ============================================= SMC-AP# sntp-server ip This command sets the IP address of the servers to which SNTP time requests are issued.
System Management Commands Command Usage When SNTP client mode is enabled using the sntp-server enable command, the sntp-server ip command specifies the time servers from which the access point polls for time updates. The access point will poll the time servers in the order specified until a response is received. Example SMC-AP(config)#sntp-server ip 10.1.0.
Command Line Interface Example SMC-AP(config)#sntp-server enable SMC-AP(config)# Related Commands sntp-server ip (page 6-28) show sntp (page 6-32) sntp-server date-time This command sets the system clock. Default Setting 00:14:00, January 1, 1970 Command Mode Global Configuration Example This example sets the system clock to 17:37 January 10, 2004.
System Management Commands sntp-server daylight-saving This command sets the start and end dates for daylight savings time. Use the no form to disable daylight savings time. Syntax sntp-server daylight-saving no sntp-server daylight-saving Default Setting Disabled Command Mode Global Configuration Command Usage The command sets the system clock back one hour during the specified period. Example This sets daylight savings time to be used from July 1st to September 1st.
Command Line Interface sntp-server timezone This command sets the time zone for the access point’s internal clock. Syntax sntp-server timezone hours - Number of hours before/after UTC. (Range: -12 to +12 hours) Default Setting None Command Mode Global Configuration Command Usage This command sets the local time zone relative to the Coordinated Universal Time (UTC, formerly Greenwich Mean Time or GMT), based on the earth’s prime meridian, zero degrees longitude.
System Management Commands Example SMC-AP#show sntp SNTP Information ========================================================= Service State : Enabled SNTP (server 1) IP : 137.92.140.80 SNTP (server 2) IP : 192.43.244.18 Current Time : 08 : 04, Jan 10th, 2004 Time Zone : +8 (TAIPEI, BEIJING) Daylight Saving : Enabled, from Jun, 1st to Sep, 1st ========================================================= SMC-AP# show system This command displays basic system configuration settings.
Command Line Interface Example SMC-AP#show system System Information =========================================================== Serial Number : A252014354 System Up time : 0 days, 1 hours, 28 minutes, 9 seconds System Name : Enterprise AP System Location : System Contact : Contact System Country Code : 99 - NO_COUNTRY_SET MAC Address : 00-30-F1-71-D6-40 IP Address : 192.168.2.2 Subnet Mask : 255.255.255.0 Default Gateway : 0.0.0.
SNMP Commands SNMP Commands Controls access to this access point from management stations using the Simple Network Management Protocol (SNMP), as well as the hosts that will receive trap messages.
Command Line Interface • ro - Specifies read-only access. Authorized management stations are only able to retrieve MIB objects. • rw - Specifies read/write access. Authorized management stations are able to both retrieve and modify MIB objects. Default Setting • public - Read-only access. Authorized management stations are only able to retrieve MIB objects. • private - Read/write access. Authorized management stations are able to both retrieve and modify MIB objects.
SNMP Commands Command Mode Global Configuration Example SMC-AP(config)#snmp-server contact Paul SMC-AP(config)# Related Commands snmp-server location (page 6-39) snmp-server enable server This command enables SNMP management access and also enables this device to send SNMP traps (i.e., notifications). Use the no form to disable SNMP service and trap messages.
Command Line Interface Related Commands snmp-server host (page 6-38) snmp-server host This command specifies the recipient of an SNMP notification. Use the no form to remove the specified host. Syntax snmp-server host no snmp-server host • host_ip_address - IP of the host (the targeted recipient). • host_name - Name of the host. (Range: 1-20 characters) • community-string - Password-like community string sent with the notification operation.
SNMP Commands Example SMC-AP(config)#snmp-server host 10.1.19.23 batman SMC-AP(config)# Related Commands snmp-server enable server (page 6-37) snmp-server location This command sets the system location string. Use the no form to remove the location string. Syntax snmp-server location text no snmp-server location text - String that describes the system location.
Command Line Interface show snmp This command displays the SNMP configuration settings. Command Mode Exec Example SMC-AP#show snmp SNMP Information ============================================ Service State : Enable Community (ro) : ***** Community (rw) : ***** Location : WC-19 Contact : Paul Traps : Enabled Host Name/IP : 10.1.19.23 Trap Community : ***** ============================================= SMC-AP# Flash/File Commands These commands are used to manage the system code or configuration files.
Flash/File Commands bootfile This command specifies the image used to start up the system. Syntax bootfile filename - Name of the image file. Default Setting None Command Mode Exec Command Usage • The file name should not contain slashes (\ or /), the leading letter of the file name should not be a period (.), and the maximum length for file names is 32 characters. (Valid characters: A-Z, a-z, 0-9, “.”, “-”, “_”) • If the file contains an error, it cannot be set as the default file.
Command Line Interface copy This command copies a boot file, code image, or configuration file between the access point’s flash memory and a FTP/TFTP server. When you save the configuration settings to a file on a FTP/TFTP server, that file can later be downloaded to the access point to restore system operation. The success of the file transfer depends on the accessibility of the FTP/TFTP server and the quality of the network connection.
Flash/File Commands server is 255 characters or 32 characters for files on the access point. (Valid characters: A-Z, a-z, 0-9, “.”, “-”, “_”) • Due to the size limit of the flash memory, the access point supports only two operation code files. • The system configuration file must be named “syscfg” in all copy commands. Example The following example shows how to upload the configuration settings to a file on the TFTP server: SMC-AP#copy config tftp TFTP Source file name:syscfg TFTP Server IP:192.168.1.
Command Line Interface Command Mode Exec Note: Beware of deleting application images from flash memory. At least one application image is required in order to boot the access point. If there are multiple image files in flash memory, and the one used to boot the access point is deleted, be sure you first use the bootfile command to update the application image file booted at startup before you reboot the access point. Example This example shows how to delete the test.
RADIUS Client Example The following example shows how to display all file information: SMC-AP#dir File Name -------------------------dflt-img.bin syscfg syscfg_bak zz-img.bin Type ---2 5 5 2 File Size ----------1044140 16860 16860 1044140 1048576 byte(s) available SMC-AP# RADIUS Client Remote Authentication Dial-in User Service (RADIUS) is a logon authentication protocol that uses software running on a central server to control access for RADIUS-aware devices to the network.
Command Line Interface radius-server address This command specifies the primary and secondary RADIUS servers. Syntax radius-server address [secondary] • secondary - Secondary server. • host_ip_address - IP address of server. • host_name - Host name of server. (Range: 1-20 characters) Default Setting None Command Mode Global Configuration Example SMC-AP(config)#radius-server address 192.168.1.
RADIUS Client Example SMC-AP(config)#radius-server port 181 SMC-AP(config)# radius-server key This command sets the RADIUS encryption key. Syntax radius-server [secondary] key • secondary - Secondary server. • key_string - Encryption key used to authenticate logon access for client. Do not use blank spaces in the string.
Command Line Interface Default Setting 3 Command Mode Global Configuration Example SMC-AP(config)#radius-server retransmit 5 SMC-AP(config)# radius-server timeout This command sets the interval between transmitting authentication requests to the RADIUS server. Syntax radius-server [secondary] timeout number_of_seconds • secondary - Secondary server. • number_of_seconds - Number of seconds the access point waits for a reply before resending a request.
RADIUS Client show radius This command displays the current settings for the RADIUS server. Default Setting None Command Mode Exec Example SMC-AP#show radius Radius Server Information ======================================== IP : 192.168.1.25 Port : 181 Key : ***** Retransmit : 5 Timeout : 10 ======================================== Radius Secondary Server Information ======================================== IP : 0.0.0.
Command Line Interface 802.1x Port Authentication The access point supports IEEE 802.1x access control for wireless clients. This control feature prevents unauthorized access to the network by requiring a 802.1x client application to submit a user name and password for authentication. Client authentication is then verified via by a RADIUS server using EAPOL (Extensible Authentication Protocol Over LAN) before the access point grants client access to the network. 6-50 Command Function Mode Page 802.
802.1x Port Authentication Command Function Mode Page macauthentication session-timeout Sets the interval at which associated GC clients will be re-authenticated with the RADIUS server authentication database 6-58 show authentication Shows all 802.1x authentication settings, as well as the address filter table 6-59 Exec 802.1x This command configures 802.1x as optionally supported or as required for wireless clients. Use the no form to disable 802.1x support. Syntax 802.
Command Line Interface authentication process (i.e., the access point does NOT initiate 802.1x authentication). For stations initiating 802.1x, only those stations successfully authenticated are allowed to access the network. For those stations not initiating 802.1x, access to the network is allowed after successful 802.11 association. • When 802.1x is required, the access point enforces 802.1x authentication for all 802.11 associated stations. If 802.
802.1x Port Authentication Command Usage • The access point uses EAPOL (Extensible Authentication Protocol Over LANs) packets to pass dynamic unicast session and broadcast keys to wireless clients. The 802.1x broadcast-key-refresh-rate command specifies the interval after which the broadcast keys are changed. The 802.1x session-key-refresh-rate command specifies the interval after which unicast session keys are changed.
Command Line Interface Example SMC-AP(config)#802.1x session-key-refresh-rate 5 SMC-AP(config)# 802.1x session-timeout This command sets the time period after which a connected client must be re-authenticated. Use the no form to disable 802.1x re-authentication. Syntax 802.1x session-timeout no 802.1x session-timeout seconds - The number of seconds. (Range: 0-65535) Default 0 (Disabled) Command Mode Global Configuration Example SMC-AP(config)#802.
802.1x Port Authentication Default allowed Command Mode Global Configuration Example SMC-AP(config)#address filter default denied SMC-AP(config)# Related Commands address filter entry (page 6-55) show authentication (page 6-59) address filter entry This command enters a MAC address in the filter table. Syntax address filter entry • mac-address - Physical address of client. (Enter six pairs of hexadecimal digits separated by hyphens; e.g., 00-90-D1-12-AB-89.
Command Line Interface • An entry in the address table may be allowed or denied access depending on the global setting configured for the address entry default command. Example SMC-AP(config)#address filter entry 00-70-50-cc-99-1a allowed SMC-AP(config)# Related Commands address filter default (page 6-54) show authentication (page 6-59) address filter delete This command deletes a MAC address from the filter table. Syntax address filter delete mac-address - Physical address of client.
802.1x Port Authentication mac-authentication server This command sets address filtering to be performed with local or remote options. Use the no form to disable MAC address authentication. Syntax mac-authentication server [local | remote] • local - Authenticate the MAC address of wireless clients with the local authentication database during 802.11 association. • remote - Authenticate the MAC address of wireless clients with the RADIUS server during 802.1x authentication.
Command Line Interface mac-authentication session-timeout This command sets the interval at which associated clients will be re-authenticated with the RADIUS server authentication database. Use the no form to disable reauthentication. Syntax mac-authentication session-timeout seconds - Re-authentication interval.
802.1x Port Authentication show authentication This command shows all 802.1x authentication settings, as well as the address filter table. Command Mode Exec Example SMC-AP#show authentication Authentication Information ========================================================= MAC Authentication Server : REMOTE MAC Auth Session Timeout Value : 1 secs 802.1x : SUPPORTED Broadcast Key Refresh Rate : 5 min Session Key Refresh Rate : 5 min 802.
Command Line Interface Filtering Commands The commands described in this section are used to filter communications between wireless clients, control access to the management interface from wireless clients, and filter traffic using specific Ethernet protocol types.
Filtering Commands Command Usage This command can disable wireless-to-wireless communications between clients via the access point. However, it does not affect communications between wireless clients and the wired network. Example SMC-AP(config)#filter local-bridge SMC-AP(config)# filter ap-manage This command prevents wireless clients from accessing the management interface on the access point. Use the no form to disable this filtering.
Command Line Interface filter ethernet-type enable This command checks the Ethernet type on all incoming and outgoing Ethernet packets against the protocol filtering table. Use the no form to disable this feature. Syntax filter ethernet-type enable no filter ethernet-type enable Default Disabled Command Mode Global Configuration Command Usage This command is used in conjunction with the filter ethernet-type protocol command to determine which Ethernet protocol types are to be filtered.
Filtering Commands filter ethernet-type protocol This command sets a filter for a specific Ethernet type. Use the no form to disable filtering for a specific Ethernet type. Syntax filter ethernet-type protocol no filter ethernet-type protocol protocol - An Ethernet protocol type.
Command Line Interface show filters This command shows the filter options and protocol entries in the filter table.
Interface Commands Interface Commands The commands described in this section configure connection parameters for the Ethernet port and wireless interface.
Command Line Interface 6-66 Command Function Mode Page ssid-broadcast Opens access to clients without a pre-configured SSID IC-W 6-77 closed-system Closes access to clients without a pre-configured SSID IC-W 6-77 speed Configures the maximum data rate at which a station can connect to the access point IC-W 6-78 channel Configures the radio channel IC-W 6-79 turbo Configures turbo mode to use IC-W faster data rate 6-80 ssid Configures the service set identifier IC-W 6-80 beacon-int
Interface Commands Command Function Mode Page authentication Defines the 802.
Command Line Interface Command Function Mode Page wpa-psk-type Defines the type of the preshared-key IC-W 6-95 shutdown Disables the wireless interface IC-W 6-96 show interface wireless Shows the status for the wireless interface Exec 6-97 show station Shows the wireless clients associated with the access point Exec 6-98 interface This command configures an interface type and enters interface configuration mode.
Interface Commands dns server This command specifies the address for the primary or secondary domain name server to be used for name-to-address resolution. Syntax dns primary-server dns secondary-server • primary-server - Primary server used for name resolution. • secondary-server - Secondary server used for name resolution. • server-address - IP address of domain-name server.
Command Line Interface ip address This command sets the IP address for the (10/100Base-TX) Ethernet interface. Use the no form to restore the default IP address. Syntax ip address no ip address • ip-address - IP address • netmask - Network mask for the associated IP subnet. This mask identifies the host address bits used for routing to specific subnets. • gateway - IP address of the default gateway Default Setting IP address: 192.168.2.2 Netmask: 255.255.255.
Interface Commands Example SMC-AP(config)#interface ethernet Enter Ethernet configuration commands, one per line. SMC-AP(if-ethernet)#ip address 192.168.2.2 255.255.255.0 192.168.1.253 SMC-AP(if-ethernet)# Related Commands ip dhcp (page 6-71) ip dhcp This command sets the IP address for the currently selected VLAN interface. Use the no form to restore the default IP address.
Command Line Interface broadcast periodically by this device in an effort to learn its IP address. (DHCP values can include the IP address, subnet mask, and default gateway.) Example SMC-AP(config)#interface ethernet Enter Ethernet configuration commands, one per line. SMC-AP(if-ethernet)#ip dhcp SMC-AP(if-ethernet)# Related Commands ip address (page 6-70) shutdown This command disables the Ethernet interface. To restart a disabled interface, use the no form.
Interface Commands Example The following example disables the Ethernet port. SMC-AP(if-ethernet)#shutdown SMC-AP(if-ethernet)# speed-duplex This command configures the speed and duplex mode of a given interface when autonegotiation is disabled. Use the no form to restore the default.
Command Line Interface show interface ethernet This command displays the status for the Ethernet interface. Syntax show interface [ethernet] Default Setting Ethernet interface Command Mode Exec Example SMC-AP#show interface ethernet Ethernet Interface Information ======================================== IP Address : 192.168.2.2 Subnet Mask : 255.255.255.0 Default Gateway : 192.168.1.253 Primary DNS : 192.168.1.55 Secondary DNS : 10.1.0.
Interface Commands • g - g-only mode: Only 802.11g clients can communicate with the access point. • b+g - b & g mixed mode: Both 802.11b and 802.11g clients can communicate with the access point.
Command Line Interface Example SMC-AP(config)#interface wireless g SMC-AP(if-wireless g)#select-antenna-mode right antenna SMC-AP(if-wireless g)# description This command adds a description to a the wireless interface. Use the no form to remove the description. Syntax description no description string - Comment or a description for this interface.
Interface Commands Default Setting Enabled Command Mode Interface Configuration (Wireless) Command Usage When SSID broadcast is disabled, the access point will not include its SSID in beacon messages. Nor will it respond to probe requests from clients that do not include a fixed SSID. Example SMC-AP(if-wireless g)#no ssid-broadcast SMC-AP(if-wireless g)# closed-system This command closes access to clients without a pre-configured SSID. Use the no form to disable this feature.
Command Line Interface Example SMC-AP(if-wireless g)#closed-system SMC-AP(if-wireless g)# speed This command configures the maximum data rate at which a station can connect to the access point. Syntax speed speed - Maximum access speed allowed for wireless clients. (Options: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps) Default Setting 54 Mbps Command Mode Interface Configuration (Wireless) Command Usage The maximum transmission distance is affected by the data rate.
Interface Commands channel This command configures the radio channel through which the access point communicates with wireless clients. Syntax channel • channel - Manually sets the radio channel used for communications with wireless clients. (Range: 802.11g - 1 to 11) • auto - Automatically selects an unoccupied channel (if available). Otherwise, the lowest channel is selected.
Command Line Interface ssid This command configures the service set identifier (SSID). Syntax ssid string string - The name of a basic service set supported by the access point. (Range: 1 - 32 characters) Default Setting smc Command Mode Interface Configuration (Wireless) Command Usage Clients that want to connect to the wireless network via an access point must set their SSIDs to the same as that of the access point.
Interface Commands Command Mode Interface Configuration (Wireless) Command Usage The beacon signals allow wireless clients to maintain contact with the access point. They may also carry power-management information. Example SMC-AP(if-wireless g)#beacon-interval 150 SMC-AP(if-wireless g)# dtim-period This command configures the rate at which stations in sleep mode must wake up to receive broadcast/multicast transmissions.
Command Line Interface indicates that the access point will save all broadcast/ multicast frames for the Basic Service Set (BSS) and forward them after every second beacon. • Using smaller DTIM intervals delivers broadcast/multicast frames in a more timely manner, causing stations in Power Save mode to wake up more often and drain power faster. Using higher DTIM values reduces the power used by stations in Power Save mode, but delays the transmission of broadcast/multicast frames.
Interface Commands collisions due to high network utilization, try setting the fragment size to send smaller fragments. This will speed up the retransmission of smaller frames. However, it is more efficient to set the fragment size larger if very little or no interference is present because it requires overhead to send multiple frames.
Command Line Interface RTS frame, the station sends a CTS frame to notify the sending station that it can start sending data. • Access points contending for the wireless medium may not be aware of each other. The RTS/CTS mechanism can solve this “Hidden Node” problem. Example SMC-AP(if-wireless g)#rts-threshold 256 SMC-AP(if-wireless g)# authentication This command defines the 802.11 authentication type allowed by the access point.
Interface Commands Example SMC-AP(if-wireless g)#authentication shared SMC-AP(if-wireless g)# Related Commands encryption (page 6-85) key (page 6-86) encryption This command defines whether or not WEP encryption is used to provide privacy for wireless communications. Use the no form to disable encryption. Syntax encryption no encryption key-length - Size of encryption key.
Command Line Interface • Note that WEP protects data transmitted between wireless nodes, but does not protect any transmissions over your wired network or over the Internet. Example SMC-AP(if-wireless g)#encryption 128 SMC-AP(if-wireless g)# Related Commands key (page 6-86) key This command sets the keys used for WEP encryption. Use the no form to delete a configured key. Syntax key no key index • • • • index - Key index. (Range: 1-4) size - Key size.
Interface Commands specify the key length, and use the key command to configure at least one key. • If WEP is enabled, all wireless clients must be configured with the same shared keys to communicate with the access point. • The encryption length specified in the encryption command and the key command must match. • The encryption index, length and type configured in the access point must match those configured in the clients.
Command Line Interface Command Usage • If you use WEP key encryption, the access point uses the transmit key to encrypt multicast and broadcast data signals that it sends to client devices. Other keys can be used for decryption of data from clients. • When using IEEE 802.1x, the access point uses a dynamic WEP key to encrypt unicast and broadcast messages to 802.1x-enabled clients. However, because the access point sends the WEP keys during the 802.
Interface Commands number of users in an area, you must keep the power as low as possible. Power selection is not just a trade off between coverage area and maximum supported clients. You also have to ensure that high strength signals do not interfere with the operation of other radio devices in your area.
Command Line Interface multicast-cipher This command defines the cipher algorithm used for broadcasting and multicasting when using Wi-Fi Protected Access (WPA) security. Syntax multicast-cipher • AES - Advanced Encryption Standard • TKIP - Temporal Key Integrity Protocol • WEP - Wired Equivalent Privacy Default Setting WEP Command Mode Interface Configuration (Wireless) Command Usage • WPA enables the access point to support different unicast encryption keys for each client.
Interface Commands • TKIP defends against attacks on WEP in which the unencrypted initialization vector in encrypted packets is used to calculate the WEP key. TKIP changes the encryption key on each packet, and rotates not just the unicast keys, but the broadcast keys as well. TKIP is a replacement for WEP that removes the predictability that intruders relied on to determine the WEP key.
Command Line Interface Command Usage Wi-Fi Protected Access (WPA) provides improved data encryption, which was weak in WEP, and user authentication, which was largely missing in WEP. WPA uses the following security mechanisms. Enhanced Data Encryption through TKIP WPA uses Temporal Key Integrity Protocol (TKIP). TKIP provides data encryption enhancements including per-packet key hashing (i.e.
Interface Commands wpa-mode This command specifies whether Wi-Fi Protected Access (WPA) is to use 802.1x dynamic keys or a pre-shared key. Syntax wpa-mode • dynamic - WPA with 802.1x dynamic keys. • pre-shared-key - WPA with a pre-shared key. Default Setting dynamic Command Mode Interface Configuration (Wireless) Command Usage • When the WPA mode is set to “dynamic,” clients are authenticated using 802.1x via a RADIUS server. Each client has to be WPA-enabled or support 802.
Command Line Interface wpa-preshared-key This command defines a Wi-Fi Protected Access (WPA) preshared-key. Syntax wpa-preshared-key • type - Input format. (Options: ASCII, HEX) • value - The key string. For ASCII input, use 5/13 alphanumeric characters for 64/128 bit strings. For HEX input, use 10/26 hexadecimal digits for 64/128 bit strings.
Interface Commands wpa-psk-type This command defines the Wi-Fi Protected Access (WPA) preshared-key type. Syntax wpa-psk-type type - Input format.
Command Line Interface shutdown This command disables the wireless interface. Use the no form to restart the interface.
Interface Commands show interface wireless This command displays the status for the wireless interface. Syntax show interface wireless • g - 802.11g radio interface. Command Mode Exec Example SMC-AP#show interface wireless g Wireless Interface Information ========================================================= ----------------Identification--------------------------Description : Enterprise 802.
Command Line Interface show station This command shows the wireless clients associated with the access point. Command Mode Exec Example SMC-AP#show station 802.
IAPP Commands IAPP Commands The command described in this section enables the protocol signaling required to ensure the successful handover of wireless clients roaming between different 802.11f-compliant access points. In other words, the 802.11f protocol can ensure successful roaming between access points in a multi-vendor environment. iapp This command enables the protocol signaling required to hand over wireless clients roaming between different 802.11f-compliant access points.
Command Line Interface VLAN Commands The access point can enable the support of VLAN-tagged traffic passing between wireless clients and the wired network. Up to 16 VLAN IDs can be mapped to specific wireless clients, allowing users to remain within the same VLAN as they move around a campus site. When VLAN is enabled on the access point, a VLAN ID (a number between 1 and 4095) can be assigned to each client after successful authentication using IEEE 802.1x and a central RADIUS server.
VLAN Commands vlan This command enables VLANs for all traffic. Use the no form to disable VLANs. Syntax vlan enable no vlan Default Disabled Command Mode Global Configuration Command Description • When VLANs are enabled, the access point tags frames received from wireless clients with the VLAN ID configured for each client on the RADIUS server. If the VLAN ID has not been configured for a client on the RADIUS server, then the frames are tagged with the access point’s native VLAN ID.
Command Line Interface native-vlanid This command configures the native VLAN ID for the access point. Syntax native-vlanid vlan-id - Native VLAN ID. (Range: 1-16) Default Setting 1 Command Mode Global Configuration Command Usage When VLANs are enabled on the access point, a VLAN ID (a number between 1 and 4095) can be assigned to each client after successful authentication using IEEE 802.1x and a central RADIUS server.
Appendix A Troubleshooting Check the following items before you contact local Technical Support. 1. If wireless clients cannot access the network, check the following: • Be sure the access point and the wireless clients are configured with the same Service Set ID (SSID). • If authentication or encryption are enabled, ensure that the wireless clients are properly configured with the appropriate authentication or encryption keys.
Troubleshooting 2. If the access point cannot be configured using the Telnet, a web browser, or SNMP software: • Be sure to have configured the access point with a valid IP address, subnet mask and default gateway. • If VLANs are enabled on the access point, the management station should be configured to send tagged frames with a VLAN ID that matches the access point’s native VLAN (default VLAN 1, page 5-19).
Troubleshooting 4. If you forgot or lost the password: • Set the access point to its default configuration by pressing the reset button on the back panel for 5 seconds or more. Then use the default user name “admin” with the password “smcadmin” to access the management interface. 5. If all other recovery measure fail, and the access point is still not functioning properly, take any of these steps: • Reset the access point’s hardware using the console interface, web interface, or through a power reset.
Troubleshooting Maximum Distance Table Important Notice Maximum distances posted below are actual tested distance thresholds. However, there are many variables such as barrier composition and construction and local environmental interference that may impact your actual distances and cause you to experience distance thresholds far lower than those posted below. 802.11b Wireless Distance Table Speed and Distance Ranges Environment Outdoors 1 Indoors2 11 Mbps 5.
Appendix B Specifications General Specifications Maximum Channels 802.11b: US & Canada: 11 (normal mode) Japan: 14 (normal mode) ETSI: 13 channels (normal mode) 802.11g: FCC/IC: 1-11, ETSI: 1-13, France: 10-13, MKK: 1-13 Maximum Clients 64 Operating Range See “Maximum Distance Table” on page A-4 Data Rate 802.11g: 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps per channel 802.11b: 1, 2, 5.5, 11 Mbps per channel Modulation Type 802.11g: CCK, BPSK, QPSK, OFDM 802.
Specifications Operating Frequency 802.11b: 2.4 ~ 2.4835 GHz (US, Canada, ETSI) 2.4 ~ 2.497 GHz (Japan) Power supply Input: 100-240 AC, 50-60 Hz Output: 3.3 VDC, 4A Power consumption: 13.2 watts PoE (DC) Input voltage: 48 volts, 0.27A, 12.96 watts Note: Power can also be provided to the access point through the Ethernet port based on IEEE 802.3af Power over Ethernet (PoE) specifications. When both PoE is provided and the adapter is plugged in, PoE will be turned off. Physical Size 21.83 x 13.73 x 3.
General Specifications Compliances IEC 61000-4-2/3/4/6/11 EMC Compliance (Class B) FCC Class B (US) ICES-003 (Canada) VCCI (Japan) RCR STD-33A Radio Signal Certification FCC Part 15.247 (2.4GHz) FCC part 15 15.407(b), CISPR 22-96 RSS-210 (Canada) EN 55022, EN55024, EN 300.328 EN 300 826, EN 61000-3-2, EN61000-3-3 ETSI300.328; ETS 300 826 (802.11b) MPT RCR std.33 (D33 1~13 Channel, T66 Channel 14) Safety CSA/NTRL (CSA 22.2 No. 950 & UL 1950) EN60950 (TÜV/GS), IEC60950 (CB) LVD/EN 60950 Standards IEEE 802.
Specifications Sensitivity IEEE 802.11g Data Rate 6 Mbps Sensitivity (dBm) -88 9 Mbps -87 12 Mbps -86 17 Mbps -85 24 Mbps -81 36 Mbps -77 48 Mbps -72 54 Mbps -70 IEEE 802.11b Data Rate B-4 Sensitivity (dBm) 1 Mbps -93 2 Mbps -90 5.
General Specifications Transmit Power IEEE 802.11g Data Rate Maximum Output Power (GHz - dBm) 2.412 2.417~2.467 2.472 6 Mbps 20 20 18 9 Mbps 20 20 18 12 Mbps 20 20 18 18 Mbps 20 20 18 24 Mbps 20 20 18 36 Mbps 18 19 17 48 Mbps 17 16 15 54 Mbps 15 14 13 IEEE 802.11b Data Rate Maximum Output Power (GHz - dBm) 2.412 2.417~2.467 2.472 1 Mbps 15 16 15 2 Mbps 15 16 15 5.
Specifications B-6
Appendix C Cables and Pinouts Twisted-Pair Cable Assignments Caution: DO NOT plug a phone jack connector into the RJ-45 port. Use only twisted-pair cables with RJ-45 connectors that conform with FCC standards. For 10/100BASE-TX connections, a twisted-pair cable must have two pairs of wires. Each wire pair is identified by two different colors. For example, one wire might be red and the other, red with white stripes. Also, an RJ-45 connector must be attached to both ends of the cable.
Cables and Pinouts 10/100BASE-TX Pin Assignments Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ-45 connections: 100-ohm Category 3 or better cable for 10 Mbps connections, or 100-ohm Category 5 or better cable for 100 Mbps connections. Also be sure that the length of any twisted-pair connection does not exceed 100 meters (328 feet). The RJ-45 port on the access point is wired with MDI pinouts.
Twisted-Pair Cable Assignments Straight-Through Wiring Because the 10/100 Mbps port on the access point uses an MDI pin configuration, you must use “straight-through” cable for network connections to hubs or switches that only have MDI-X ports. However, if the device to which you are connecting supports auto-MDIX operation, you can use either “straight-through” or “crossover” cable.
Cables and Pinouts Console Port Pin Assignments The DB-9 DCE serial port on the front panel of the SMC2552W-G is used to connect to the access point for out-of-band console configuration. The command-line configuration program can be accessed from a terminal, or a PC running a terminal emulation program. The pin assignments used to connect to the serial port are provided in the following tables.
Console Port Pin Assignments Serial Cable Signal Directions for DB-9 Ports DB-9 to DB-9 AP Terminal or PC 1 2 3 4 5 6 7 8 9 Reserved Reserved Reserved Reserved 5 4 3 2 1 9 8 7 6 C-5
Cables and Pinouts C-6
Glossary 10BASE-T IEEE 802.3 specification for 10 Mbps Ethernet over two pairs of Category 3 or better UTP cable. 100BASE-TX IEEE 802.3u specification for 100 Mbps Fast Ethernet over two pairs of Category 5 or better UTP cable. Access Point A networking device that seamlessly connects wired and wireless networks. Access points attached to a wired network, support the creation of multiple radio cells that enable roaming throughout a facility.
Glossary Backbone The core infrastructure of a network. The portion of the network that transports information from one central location to another central location where it is unloaded onto a local system. Basic Service Set (BSS) A set of 802.11-compliant stations and an access point that operate as a fully-connected wireless network. Beacon A signal periodically transmitted from the access point that is used to identify the service set, and to maintain contact with wireless clients.
Glossary Extended Service Set (ESS) More than one wireless cell can be configured with the same Service Set Identifier to allow mobile users can roam between different cells with the Extended Service Set. Extensible Authentication Protocol (EAP) An authentication protocol used to authenticate network clients. EAP is combined with IEEE 802.
Glossary IEEE 802.11g A wireless standard that supports wireless communications in the 2.4 GHz band using Orthogonal Frequency Division Multiplexing (OFDM). The standard provides for data rates of 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps. IEEE 802.11g is also backward compatible with IEEE 802.11b. IEEE 802.1x Port Authentication controls access to the switch ports by requiring users to first enter a user ID and password for authentication.
Glossary Open System A security option which broadcasts a beacon signal including the access point’s configured SSID. Wireless clients can read the SSID from the beacon, and automatically reset their SSID to allow immediate connection to the nearest access point. Orthogonal Frequency Division Multiplexing (ODFM) OFDM/ allows multiple users to transmit in an allocated band by dividing the bandwidth into many narrow bandwidth carriers.
Glossary Session Key Session keys are unique to each client, and are used to authenticate a client connection, and correlate traffic passing between a specific client and the access point. Shared Key A shared key can be used to authenticate each client attached to a wireless network. Shared Key authentication must be used along with the 802.11 Wireless Equivalent Privacy algorithm.
Glossary Wi-Fi Protected Access WPA employs 802.1x as its basic framework for user authentication and dynamic key management to provide an enhanced security solution for 802.11 wireless networks. Wired Equivalent Privacy (WEP) WEP is based on the use of security keys and the popular RC4 encryption algorithm. Wireless devices without a valid WEP key will be excluded from network traffic.
Glossary Glossary-8
Index Numerics 802.
Index F factory defaults restoring 5-30, 6-14 filter 5-19, 6-54 address 5-12, 6-54 between wireless clients 5-20, 6-60 local bridge 5-20, 6-60 local or remote 5-12, 6-57 management access 5-21, 6-61 protocol types 5-21, 6-62 VLANs 5-19, 6-100 firmware displaying version 5-29, 6-34 upgrading 5-28, 5-30, 6-42 fragmentation 6-82 G gateway address 4-3, 5-7, 6-2, 6-70 H IEEE 802.
Index N network topologies infrastructure 2-3 infrastructure for roaming 2-4 O OFDM 1-1 open system 5-44, 6-77 operating frequency B-1 P package checklist 1-2 password configuring 5-27, 6-22 management 5-27, 6-22 pin assignments console port C-4 DB-9 port C-4 PoE 1-6 specifications B-2 power connection 3-4 Power over Ethernet See PoE power supply, specifications B-2 PSK 5-52, 6-93 R radio channel 802.11a interface 5-39, 6-79 802.
Index system clock, setting 5-34, 6-30 system log enabling 5-32, 6-24 server 5-32, 6-24 system software, downloading from server 5-28, 6-42 T Telnet for managenet access 6-2 Temporal Key Integrity Protocol See TKIP time zone 5-35, 6-32 TKIP 5-52, 6-90 transmit power, configuring 5-39, 6-88 trap destination 5-25, 6-38 trap manager 5-25, 6-38 troubleshooting A-1 U upgrading software 5-28, 6-42 Index-4 user name, manager 5-27, 6-21 user password 5-27, 6-21, 6-22 V VLAN configuration 5-19, 6-101 native ID
FOR TECHNICAL SUPPORT, CALL: From U.S.A. and Canada (24 hours a day, 7 days a week) (800) SMC-4-YOU; Phn: (949) 679-8000; Fax: (949) 679-1481 From Europe: Contact details can be found on www.smc-europe.com or www.smc.com INTERNET E-mail addresses: techsupport@smc.com european.techsupport@smc-europe.com Driver updates: http://www.smc.com/index.cfm?action=tech_support_drivers_downloads World Wide Web: http://www.smc.com http://www.smc-europe.com FOR LITERATURE OR ADVERTISING RESPONSE, CALL: U.S.A.
