WLM2-G54 Users Guide
Warning ........................................................................................................................................................................................................................................................................................... iii PART I 1.0 Introduction I ..............................................................................................................................................................................................
9.4.2 9.4.3 9.5 9.5.1 9.5.2 9.5.3 9.5.4 9.5.5 9.5.6 9.5.7 9.5.8 9.6 9.6.1 9.6.2 9.6.3 9.7 9.7.1 9.7.2 9.8 9.9.1 9.9.2 9.9.3 9.10 9.10.1 9.10.2 9.10.3 9.10.4 9.10.5 9.10.6 9.10.7 9.10.8 9.10.9 9.10.10 9.11 9.11.1 9.11.2 9.11.3 9.11.4 9.11.5 9.11.6 9.12 Syslog Setup ......................................................................................................................................................................................................................................................
Warning This section explains the symbols, signs and terminology used in this manual. The following terminology is used in this manual to distinguish between an Ethernet 10/100BASE-T LAN and a Wireless LAN and should not be construed as generally accepted terminology outside this context. A PC with the BUFFALO Wireless client installed is called the Wireless LAN PC.
PART I • Other network administrative functions 1.0 2.0 Introduction I The WLM2-G54 protects customers’ investments over the long term. Buffalo’s new WLAN product, WLM2-G54, is the IEEE802.11g-based access point (AP). The Buffalo solution offers simultaneous communication on both 11Mbps and 54Mbps bands without annoying bottlenecks. High reliability, manageability and standard Buffalo features are integrated in the product and will assure easy management and high quality signal communication.
5.0 Features The Buffalo AirStation Intelligent access point provides the features necessary in today’s business environment, with a high level of reliability and security. Use of these features along with VPN will allow the user to have the highest security a WLAN can offer. For minimum security measures Buffalo recommends the use of 128bit WEP and registering client MAC addresses in the AirStation. Some of the noteworthy features are shown below. Other features are listed in Section 9. 5.
TKIP – Temporal Key Integrity Protocol is an advanced encryption method using the RC4 algorithm. Instead of using the sequential IV, a random IV will be used, and the IV key definition will be updated regularly at a preset time interval. MIC – Message Integrity Check is an encryption method used to prevent a hacker from changing the data content. An encryption algorithm and bit checksum at both the sender and receiver ends are used to check for alteration of the packet content. 5.1.
5.2.3 Spanning Tree (IEEE802.1d) Network looping often results in repeated packet transmission, which causes overloads and interruption of communications. The Spanning Tree in a network loop disconnects one of the links, rerouting the traffic in the 5.3 Network Load Distribution Features 5.3.1 Load Balancing This feature enables automatic selection of an available access point with the least load among multiple APs.
the Syslog server as a part of its administrative utilities, it is possible to use additional offthe-shelf Syslog server software. 5.5 Easy Support Features Buffalo periodically releases new firmware updates for AirStation products. The firmware is easily uploaded to the AirStation from a PC. Look for new firmware releases on our website. 6.0 Network Solutions Some basic application scenarios are described in this section. In each scenario specific features of WLM2-G54 are highlighted. 6.1 Figure 5.
system can be set with authenticated security so that only the authorized tenants can access the network. Buffalo’s wireless solution can be used as an optional fee-based service. 6.3 Schools Sometimes it is necessary for students to have personal Internet connections for schoolwork. Wireless LANs make the network connection flexible within a school campus. The broadband availability area can be expanded using Buffalo’s wireless buildingto-building solution.
mands. With a wireless LAN, any changes in the factory’s machine layout can be completed quickly. Wireless flexibility offers installation and operation cost savings for the factory. 6.6 Area Intranets Community buildings such as schools, city halls, gyms, etc., can be connected by Buffalo’s wireless LAN system to form an area Intranet. Buffalo offers the most effective wireless solution for building-to-building applications.
7.2 Environmental Resistance The WLM2-G54 AP’s high durability design allows resistance to environmental conditions like temperature changes. Since it is less susceptible to environmental change, it is suitable for warehouses, public areas and other locations where temperature control is not available. Optional dust-proof and waterproof casings are available. Setup Preparation With Buffalo’s firmware upgrade utility tool, updating the firmware will be simple.
5. After finding an AirStation, select Admin / Set IP address. 6. Either enter the IP and Subnet Mask address in the boxes or select DHCP. Figure 8.5 Setup Screen 7. Leave the Password box empty. Click OK. 8. IP address setup is complete. 8.5 Setup Screen 1. Highlight the WLM2-G54, click the "Admin" button, then the "Configure AirStation" tab to open the setup screen. In the password page, enter the following information: User Name: root Password: [leave blank] Click OK. 2.
Figure 8.6.7 SNMP Function Figure 8.6.9 DHCP and manual IP configuration 10 8.6 Input Parameters Through the Client Manager 1. Click the "Management" to open the next page. 2. Click the "Time Settings" menu on the left (menu section) to set the current time. Click Set. 3. Click the "LAN Setup" menu on the left; then click the "Wireless" menu. 4. Enter appropriate ESS-ID and channel number. (see previous page) ■ Note: ESS-IDs are case sensitive, up to 32 alphanumeric characters in length. 5.
3. 4. 5. 6. 7. 8. possible to use any other off-the-shelf software. ■ Note: If the AirStation is already connected by Telnet or Client Manager, you cannot log in from the terminal software. Setup the terminal as follows: Baud rate: 57600 Data bit: 8 Parity: None Stop bit: 1 Flow Control: None When the "Apxxxxxxxxxxxxx login" prompt appears, login the WLM2-G54 by "root".
Manager or Terminal Software setup screen. 4. When login prompt appears, enter “root” as a default login name. 5. Input "?"/press "Enter" to view list of commands. PART III 9.0 9.1 Detailed Configurations Introduction III Although your AirStation will work fine in most network environments, you may wish to explore the advanced options. This chapter explains each parameter in the setup screen. 9.
9.3 Time Settings Input the correct time manually or input the NTP server on your network. Using NTP Server: Check ON box in NTP. Specify the NTP server name, check interval, and time zone. (see previous page) 9.4 Management Management Settings includes the following parameters: Host Setup Time Settings Syslog Setup Unit Information Transfer Packet Information Wireless LAN PC Information Log Information Ping Test Figure 9.4.1 Host Setup Firmwave Update Return to Default Setting 9.4.
This enables reporting to the syslog server. Check the "ON" box if you want the system logs to be sent to the log server. The setup for the log server should be found in the syslog’s manual. The following log type can be tranfered: Setting, Autheutification, Device, Filter, and System. (see previous page) Interfaces(2)=PHY interface information IP(4)=Whether IP is working or not. Icmp(5)=Whether ICMP protocol is working or not. TCP(6)=Whether TCP protocol is working or not. 9.4.
Data forwarding can be delayed by a preset length of time. The delay time value may be from 4~30 seconds. The default value is 5 seconds. 9.5.4 “Hello” Time The Hello message (to the network) broadcast time interval can be changed. The "Hello" message is used to set up network routing under the Spanning Tree protocol. The interval can be 1~10 seconds. The default value is 2 seconds. 9.5.5 Max Age The "Hello" message time out period can be changed.
Changes to the parameters (DHCP, DNS, etc.) are locked out. If you make a mistake here and “lock yourself out,” the WLM2G54 can be returned to the factory default settings (ALL of them!) by holding down the INIT button on the back of the unit for 3 seconds. 9.7.2 Basic Filter Information Displays the current settings. To change a setting, check the box on the item to be changed and click "delete the checked rules." The setting can be reset to the default by clicking "Initialize Rule." 9.8 Figure 9.
9.9.2 List of the Wireless PCs Displays the PCs that are communicating with the WLM2-G54. Check the "registration" box and click the "change" button to add a MAC address. 9.9.3 Authorized Wireless LAN PCs Displays all MAC addresses that are allowed to communicate with the WLM2-G54. The status shows the current active MAC addresses on the network. To eliminate a specific MAC address from the network, check the "delete" box and click the "change" button.
4. You will need the Wireless MAC address of the target WLM2-G54. Enter its MAC address in the field labeled "MAC Address of AirStation (Wireless)." Use the format XX:XX:XX:XX:XX:XX for the MAC address. 5. Click "Add." Repeat this process for up to 5 additional access points. 6. Once all of the MAC addresses are entered, repeat this process for each WLM2-G54 you wish to set up for AP-AP communications. The second WLM2-G54 must have the MAC address of the first one.
Configure EAP in the Security/802.11g screen. ■ Note: For MAC Access Restriction, do not check the "Enable" box until you have set up Authorized MAC addresses (Section 9.8.4.3). 9.10.6 Privacy, WEP Set the encryption method used in wireless communications for the protection of your data. It is necessary that the WEP key match between two parties for secure communications. If multiple keys are used, the order must match between communicating devices.
9.11.3 Interval of Checking Connection Interval timer to check connection with destination host. 9.11.4 Retry Count The number of times a retry will be attempted when a failed connection is detected. The retry is performed every 2 seconds. 9.11.5 Apply Device Specify wireless device that is applicable Link Integrity function. 9.11.6 Status Link integrity status. 9.12 Wireless Distribution System Settings Figure 10.2.1 Unit Information WDS is used for wireless communication between access points.
10.2.1 Unit Information (see previous page) Parameters used in the WLM2-G54: 1. Model Name: The AirStation model name and firmware version number 2. AirStation Name: The alias for the AirStation 3. Wired Settings: WLM2-G54’s wired MAC address 4. Wireless Firmware: The wireless LAN card model name and firmware version number 5. Wireless MAC address: WLM2-G54’s wireless MAC address 6.
log related to the setup history from a browser or Telnet session is recorded. 10.2.5 Ping Test The WLM2-G54 issues a ping test to the target PC in order for the AirStation to check the communication link. Input the target device’s IP address and click "OK". 10.2.6 Return to Default Setting Allows the user to reinitialize all parameters back to factory defaults. After the reinitialization, the system will restart automatically. Figure 10.2.5 Ping Test Figure 10.2.
Additional Information For more information, please consult one of the following: • The on-line help system of your AirStation wireless system - for information about software and driver functionality. • The AirStation web site - for frequently asked questions (FAQ’s) and Software Updates. Appendix A Range Information • The range of your wireless devices can be affected when the AirStation is placed near metal surfaces and solid high-density materials.
Appendix A - Intelligent Access Point (WLM2-G54) Specifications Frequency Band 2.4GHz channel support Operating Channels 11 channels; 20 MHz BW 1:2412, 2:2417, 3:2422, 4:2427, 5:2432, 6:2437, 7:2442, 8:2447, 9:2452, 10:2457, 11:2462 Standards 1x/EAP, Wi-Fi IEEE 802.11g, IEEE 802.3 (10BASE-T), IEEE 802. Data Rates Supported 54Mbps Fullback to 48, 36, 24, 18, 12, 9 and 6 54Mbps OFDM modulation 11Mbps Fallback to 5.5, 2 and 1 11Mbps – CCK modulation with Baker Code 5.
Appendix B - Troubleshooting This appendix is divided into following sections with each with it’s own specific troubleshooting tips: • LED Activity on section B.1. • Other Problems on section B.2. B.1 LED Activity • Power LED should be GREEN • Wireless LED should be GREEN if the line is active. If is it blinking GREEN, wireless communication is in use. • Ethernet LED should be GREEN (100Mbps) or AMBER (10Mbps) while the communication is in use. TABLE B.
Client: A PC or a workstation on a network. CRC (Cyclic Redundancy Check): Calculation method used to check the accuracy of a digital transmission over a communications link. Cross-Over Wiring: A UTP cable that has its transmit and receive wires crossed to allow communications between two devices.
of information that is sent in packets across the Internet or Intranet. Packet: A block of data that is transferred as a single unit; also called a frame or a block. Infrastructure: A wireless network or other small network in which the wireless network devices are made a part of the network through the Access Point. Packet Filtering: Discarding unwanted network traffic based on its originating address or its type.
ROM (Read Only Memory): Permanent memory. Twisted Pair: Cable that comprises 2 or more pairs of insulated wires twisted together Router: A device that can connect individual LANs and remote sites to a server. UDP (User Datagram Protocol): A communication method (protocol) that offers a limited amount of service when messages are exchanged between computers in a network. UDP is used alternatively to TCP/IP.
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Buffalo Technology Technical Support Web USA http://www.buffalotech.com/wireless EUROPE http://www.buffalo-technology.com CHINA http://www.buffalo-china.com TAIWAN http://www.buffalo-tech.com.tw KOREA http://www.buffalotech.co.kr The constantly evolving state of wireless products and operating systems requires Buffalo Technology to occasionally release updated software to take advantage of new technologies and to comply with industry standards.
