hp digital home networking Ethernet gateway model hn200e
Ethernet gateway acknowledgements and notices hewlett-packard company notices The information contained in this document is subject to change without notice. Hewlett-Packard (HP) makes no warranty of any kind with regard to this material including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
contents introduction ............................................................. 5 hp digital home networking ethernet gateway .................... 5 gateway features ............................................................ 6 getting to know the Ethernet gateway ......................... 7 Ethernet gateway rear panel ............................................ 7 Ethernet gateway front panel LEDs .................................... 8 gateway system tray application ..............................
Ethernet gateway screens and functions .................................................... 50 setup ........................................................................... 51 password..................................................................... 54 status........................................................................... 56 DHCP.......................................................................... 58 log..............................................................................
introduction hp digital home networking ethernet gateway Congratulations on your purchase of a HP Digital Home Networking Ethernet Gateway. The Ethernet Gateway is the perfect solution for connecting multiple PCs to your high-speed broadband cable modem or DSL Internet connection. Your Gateway can be configured as a Dynamic Host Configuration Protocol (DHCP) server, which means that it can automatically assign Internet Protocol (IP) addresses to PCs in your Local Area Network (LAN).
Ethernet gateway gateway features ❑ Connects to a broadband modem and to a local Ethernet network ❑ Equipped with a 4-port 10/100 switch ❑ Connects all network PCs to the Internet with a single IP address ❑ Firewall protects PCs from Internet intruders ❑ Configurable through a Web browser such as Internet Explorer or Netscape Navigator ❑ Supports Internet Protocol Security (IPSec) pass-through for Virtual Private Networking (VPN) ❑ Can be administered remotely over the Internet ❑ 10/100 swit
getting to know the Ethernet gateway Ethernet gateway rear panel The Ethernet Gateway ports, to which network cables are connected, are located on the rear panel of the Gateway. Ethernet Gateway rear panel 4 WAN 3 2 LAN 1 UPLINK POWER Ethernet gateway ports WAN (dark gray) You will connect the DSL or cable modem to the Wide Area Network (WAN) port. LAN Ports 1–4 (blue) You will connect devices on your Local Area Network (LAN), such as PCs and print servers, to the four LAN ports.
Ethernet gateway Ethernet gateway front panel LEDs Ethernet Gateway front panel LAN 1 2 POWER 3 4 WAN RESET LAN indicators Power Green. The Power LED lights green when the Gateway is powered on. There is no ON/OFF switch; simply plug or unplug the power to turn Gateway on or off. LAN Green. If the LAN LED is continuously lit, the Gateway is successfully connected to the device plugged into that port (1, 2, 3, or 4).
Ethernet gateway front panel LEDs If the Gateway locks up, unplug the Power Adapter from the Gateway’s Power Port for 3 to 5 seconds (but not longer) and then plug it back in. Leaving the power off for too long could result in the loss of network connections.
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gateway system tray application overview The Gateway installation wizard installed an application on your computer that functions as a tool kit for your Gateway. The application is accessed from a green, red, or yellow house icon in the Windows System Tray. The Window System Tray is in the recessed area of the Windows taskbar in the lower right of your screen.
Ethernet gateway ❑ Yellow: connection to Gateway lost This computer is no longer connected to the home network or to the Internet. Gateway System Tray icon (yellow) Besides providing constant feedback through the icon color, the Gateway System Tray application provides additional functionality: ❑ If there is any change in network status, a status notification window appears on your screen describing the changed situation.
status notification windows status notification windows Any change in network status generates a status notification window describing the change and, if needed, suggests actions to take. The change may also cause a color change in the System Tray icon. (These same windows appear when you select Get current network status from the System Tray pop-up menu. If all the results are "ok", the utility has not detected any connection problems.
Ethernet gateway This window appears when the Gateway attempts to access the Internet and cannot detect a connection. Connection to Gateway Lost This window appears when your computer cannot establish a link to the Gateway. Caution: If you reset the Gateway, be sure to do so only briefly (a second or two) or the Gateway will be reset to the factory defaults and any modifications you have made will be lost.
status notification windows Internet Connection Operational This window appears when the Internet connection is restored. It also appears when when you first start your computer.
Ethernet gateway pop-up menu Right-clicking the Gateway System Tray icon to display the following pop-up menu: Gateway System Tray pop-up menu This menu provides convenient access to Gateway tools, which are described in this section. Accessing a menu choice: 1 Right-click the icon, move cursor to highlight the desired option. 2 Highlight the desired option. 3 Left-click the option to launch it.
pop-up menu Check for upgrade Check for upgrade... When a software or firmware upgrade becomes available on the HP Web site, you are notified automatically by a notification window (assuming you have enabled this option — see “Notify me when network events occur” on page 27) and prompted to download and install the upgrade. Since the automatic notification may not be as frequent as you would like, you can also manually check for the availability of upgrades by selecting Check for upgrade...
Ethernet gateway Internet speed meter Internet speed meter... Selecting Internet speed meter... launches a utility that monitors your upstream and downstream Internet connection speed. When you select this choice, the following window appears: speed meter start window Click Start, and the following window appears displaying the speed of your Internet connection (it may take a few seconds to display both downstream and upstream parameters).
pop-up menu upstream speed (the speed at which data is uploaded from your computer to the Internet), as shown in the example. Contact your DSL or broadband cable provider for specifications. speed meter report Gateway control panel Gateway control panel... The Gateway Control Panel allows you to adjust the settings of your Gateway. Access to the Control Panel requires the Gateway’s administrative password.
Ethernet gateway Save the current Gateway configuration Save the current Gateway configuration... This option provides a backup copy of your current Gateway settings in the event that you need to restore them. This is especially useful if you modify your settings using the Gateway Control Panel, upgrade Gateway software or firmware, or experience a system crash.
pop-up menu 2 Click Browse to select a location to store the Gateway configuration backup file. The following dialog box appears: Choose location for configuration backup file 3 Navigate to a location of your choice for the backup file, or accept the default. 4 Click Save to save the file. The file is identified by a date and time, so you can save a series of different configurations if desired.
Ethernet gateway Restore a previous Gateway configuration Restore a previous Gateway configuration... Select this choice to restore a previously saved configuration. If you have saved more than one configuration, you can select a specific one. Internet connection diagnostic Internet connection diagnostic...
pop-up menu This utility checks your Internet connection to identify problems when a loss of connection occurs. Select the Internet connection diagnostic... to display the Internet connection diagnostic start window: Internet connection diagnostic start window The utility checks for Internet connections via the Gateway or directly from your computer.
Ethernet gateway Click Start to begin the diagnostic routine.
pop-up menu If all results are “ok”, the utility has not detected any connection problems. Internet Connection Diagnostic Parameter Message Meaning Connection to the Gateway Failed Requires a “soft” reset of the Gateway. Depress the Reset button briefly (one or two seconds) with a paperclip. Depressing the Reset button longer that two seconds can cause the factory default settings to activate. Connection to the Internet via Gateway (Ping) Failed Contact your ISP.
Ethernet gateway Get current network status Get current network status... Selecting this choice generates one of the status notification windows discussed and illustrated in the section “status notification windows” on page 13.
pop-up menu Notify me when network events occur Notify me when network events occur Selecting this option displays the status notification windows discussed in “status notification windows” on page 13. If you do not wish to receive these notifications select it and verify that the checkmark no longer appears next to this option (if a checkmark is present, make the selection again).
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gateway control panel overview The Gateway Control Panel allows you to configure additional functions beyond those installed through the Installation Wizard. This tool is a simplified alternative to the Expert Interface, which is described in the Appendix of this user’s guide. The functions of the Gateway Control Panel eliminate the need to use the Expert Interface in most cases. However, you may wish to refer to the Appendix for supplementary information for some of the options described in this chapter.
Ethernet gateway accessing the gateway control panel The Gateway Control Panel is accessed from the Gateway System Tray icon described in the previous chapter. It can also be accessed from Start > Programs > HP Digital Home Networking > Gateway Control Panel. To access the Gateway Control Panel from the Windows System Tray: 1 Locate the Gateway System Tray icon (depicted as a green, red, or yellow house depending on current network status).
accessing the gateway control panel 3 Select Gateway control panel... Select Gateway control panel... option The Gateway Control Panel Login window appears: Gateway Control Panel Login window 4 Enter your Gateway Password in the Login Password field, then click OK. The default password is “admin”.
Ethernet gateway 5 Click Hint on the Login screen if you cannot remember your password. The Password Hint window appears: Password hint window 6 The question you provided when the default password was changed is displayed. Enter the answer in the Hint Answer field, then click OK. The Hint reply window appears: Hint reply window 7 Click OK, and the password will be automatically inserted into Password box. Click OK to complete the login.
gateway control panel screen gateway control panel screen When you have successfully logged on, the Gateway Control Panel screen appears with the My Network tab selected. With any tab selected, you can access all the other functions by clicking another tab. Apply button You can save changes at any time by clicking the Apply button. Clicking Apply does not close the control panel, and you can continue to use the other tabs to make additional changes to your settings.
Ethernet gateway gateway control panel tabs My Network tab This tab is a display-only overview of your network. It shows your Gateway and all the devices connected to the network, and it shows whether each device has an Ethernet, phoneline, or wireless connection. The display is dynamically updated. However, click the Refresh button for the most current information. Password tab The Password tab allows you to change your Gateway’s password and password hint.
gateway control panel tabs Internet Access tab The Internet Access tab allows you to restrict specified computers on your network from accessing the Internet. You can also allow one user to be exposed to the Internet for a special purpose such as Internet gaming or video conferencing (the firewall is disabled for that one user). To block specified computers from Internet access: 1 In the Internet Access Enabled window, locate the computer of the user whom you wish to block from Internet access.
Ethernet gateway 3 Click and drag all selected computers to the Internet Access Disabled window or click the left-pointing arrow button between the two windows. Note: If an application you select shares the same port(s) with other applications, all applications configured for those ports will be dragged along with your selection since this operation blocks the port used by those applications, not the application itself.
gateway control panel tabs 4 Enter the port number for the application; if a range is specified, click the Enter Port Range checkbox and enter the range of port numbers in the Starting Port and Ending Port fields. 5 To specify the protocol, click Advanced and select among these choices: ❑ Both TCP and UDP (the default) ❑ TCP ❑ UDP 6 Click OK. 7 Click Apply to save the changes. To remove an application from the list: 1 On the Application Hosting tab, click Remove Application(s).
Ethernet gateway The index will help you locate additional information related to the operation of the Gateway Control Panel. Remote Support tab The Remote Support tab provides access to the HP Customer Care Web site and also provides an opportunity for HP customer care experts to assist you directly if you experience difficulties you cannot solve by other means.
frequently asked questions (FAQs) gateway general information What is Network Address Translation (NAT) and what is it used for? Network Address Translation (NAT) translates multiple IP addresses on the private LAN to one public address that is sent out to the Internet. This adds a level of network security since the addresses of PCs connected to the private LAN are never transmitted over the Internet.
Ethernet gateway page of the Expert Interface. How can I block corrupted FTP downloads? If you are experiencing corrupted files when you download a file with your FTP client, try using another FTP program. What is DMZ Hosting? Demilitarized zone (DMZ) hosting allows one IP address (or computer) to be exposed to the Internet. Some applications require multiple TCP/IP ports to be open. It is recommended that you set your computer with a static IP address if you want to use DMZ Hosting.
installation and configuration options installation and configuration options How many IP addresses can the Gateway support? The Gateway supports a maximum of 253 IP addresses. Where is the Gateway installed on the network? In a typical environment, the Gateway is installed between the modem and the LAN. Plug the Gateway into the cable or DSL modem's Ethernet port.
Ethernet gateway What is the maximum number of virtual private network (VPN) sessions allowed by the Gateway? One VPN session at a time; the memory buffer on the Gateway is 512 KB. My Web pages hang up, I get corrupted downloads, or junk characters are being displayed on the screen.
supported software supported software Does the Gateway support ICQ send files? Yes, with the following fix: from ICQ menu > preference > connections tab >, select I am behind a firewall or proxy and set the firewall time-out to 80 seconds in the firewall setting. The Internet user can then send a file to a user behind the Gateway. How do I get Napster to work with the Gateway? Napster is fully compatible with the Gateway. During installation select no idea when asked about your firewall settings.
Ethernet gateway Does the Gateway support IPsec? A new IPsec pass-through feature is now included.
supported features supported features What are the advanced features of the Gateway? The Gateway's advanced features include IP filtering, IP forwarding, dynamic routing, static routing, DMZ hosting, and MAC address cloning. Is IPSec Pass-Through supported by the EtherFast Gateway? Yes, it is a built-in feature that the Gateway automatically enables. Does the Gateway support IPX or AppleTalk? No. TCP/IP is the only protocol standard for the Internet and has become the global standard for communications.
Ethernet gateway upgrade information How will I be notified of new Gateway firmware upgrades? All Hewlett-Packard firmware upgrades are posted on the HP website at www.hp.com, where they can downloaded for free. The Gateway's firmware can be upgraded with TFTP programs. If your Gateway’s Internet connection is working well, there is no need to download a newer firmware version unless that version contains new features that you would like to use.
troubleshooting I can’t connect to the Gateway. ❑ Verify that the Gateway is properly installed, the LAN connections are OK (the LAN LEDs should be lit), and it is powered on. ❑ Verify that the PC is using an IP address between 192.168.1.2 and 192.168.1.254 and thus compatible with the Gateway default IP address of 192.168.1.1. ❑ The subnet mask must be set to 255.255.255.0 to match the Gateway’s subnet mask.
Ethernet gateway I can’t obtain an IP address from my cable or DSL modem. ❑ Verify that all of your cabling is properly connected and that the Gateway’s WAN and LAN LEDs are lighting up. ❑ Power down your cable or DSL modem for a few seconds, then turn it back on. After the modem goes through its self-test, see if you now have an IP address. ❑ Verify that your cable or DSL modem is DHCP-capable. ❑ You may have to enter the host or domain name on the Setup page of the Gateway’s Expert Interface.
appendix: the expert interface advanced administration For your convenience, a Web-based administrative utility called the Expert Interface has been programmed into your Gateway. Advanced Gateway administrative tasks may be performed through this interface. The Expert Interface may be accessed through any computer on the network by typing http://192.168.1.1 in the address box of your Web browser (such as Internet Explorer or Netscpe Navigator) and pressing Enter.
Ethernet gateway screens and functions The following pages contain descriptions of each screen and its functions.
setup setup The SETUP screen appears when the Expert Interface is accessed.
Ethernet gateway Note: If you have used the Installation Wizard to install your Gateway, you have already properly configured all of this screen’s initial settings. ❑ Host Name: Allows you to create a name for the Gateway, required by some Internet Service Providers (ISPs). ❑ Domain Name: Allows you to create a domain name, required by some ISPs. ❑ Firmware Version: Shows the version of the firmware you are using.
setup reestablish your connection as soon as you attempt to access the Internet again. ❑ Keep Alive to keep the Internet connection alive indefinitely. The gateway keeps the Internet connection alive indefinitely by sending out a few data packets periodically so your Internet service detects that the connection is still active. If you enable PPPoE, remember to remove any existing PPPoE applications already on any of your PCs. (Disregard RAS Plan which is for RAS only.
Ethernet gateway password The default password on your Gateway is “admin”. To ensure security, we strongly recommend that you change your password when setting up your gateway, and then at regular intervals. To change your password: 1 Click the Password tab of the Expert Interface to view the Password screen. PASSWORD Screen 2 Enter your new Gateway password in the Router Password box. 3 Enter the new passwork again in the second box exactly as you typed it in the first box. 4 Click Apply.
password To enable remote management: 1 Click the Advanced tab. 2 Click the Filters tab and select Enable under Remote Management. 3 Click Apply. A remote managment password will be assigned. To change remote management password: 1 On the Password screen, in the Remote Management Password box, enter a new password. 2 Click Apply. Restore Factory Defaults: Allows you to restore the Gateway default settings.
Ethernet gateway status The STATUS screen displays the current status of the Gateway, reflecting data and selections entered on the SETUP screen. All of the information provided on the STATUS screen is read-only. To make changes, select the Setup tab. Select the Status tab of the Expert Interface to view the STATUS screen.
status ❑ Host Name: Shows the name of your Gateway, which is required by some ISPs. ❑ Firmware Version: Shows the version and date of the installed firmware. Dates are slightly more accurate than version numbers. ❑ Login: Shows whether PPPoE or RAS support is enabled and whether either one is connected. ❑ LAN: Displays the current IP address and subnet mask of the Gateway as seen by users on your LAN. ❑ DHCP Server: Shows whether the Gateway's DHCP server is either enabled or disabled.
Ethernet gateway DHCP A Dynamic Host Configuration Protocol (DHCP) server automatically assigns IP addresses to each computer on a network. Unless you already have a DHCP server on your network, it is highly recommended that your Gateway be set up as a DHCP server. Select the DHCP tab of the Expert Interface to view the DHCP screen. DHCP Screen ❑ DHCP Server: Select Enable to enable the Gateway’s DHCP server option. If you already have a DHCP server on your network, select Disable.
DHCP Gateway is 192.168.1.1, the starting IP address must be 192.168.1.2 or greater. ❑ Number of DHCP users: Enter the maximum number of devices to which you want the DHCP server to assign IP addresses. Accept the default value or you may enter a number up to a maximum of 253. The maximum number depends on the starting IP address, so the total number must be chosen such that the starting IP address + the number of DHCP users –1 is equal to or less than 254 (which is the maximum value).
Ethernet gateway log The LOG screen displays a record of all access traffic passing through the Gateway, including e-mail and FTP tranmissions, whether they originate from your LAN, your WAN, or from the Internet. Check logs through the LOG screen or by using the LogViewer Windows application. Select the Log tab of the Expert Interface to view the LOG screen. LOG Screen ❑ Access Log: Select Enable to activate. ❑ Send Log To: The Gateway can send log messages to the LAN host.
help help The HELP screen links to all of the Expert Interface online help screens. Each help screen, as well as all of the settings screens, contain links to the HP Web site (including technical support and Customer Care). Select the Help tab of the Expert Interface to view the HELP screen. HELP: Main Menu Screen Each settings screen also contains a Help button at the bottom of each page linked to the help page for that particular screen.
Ethernet gateway advanced The Advanced screen provides access to six settings screens: Filters, Forwarding, Dynamic Routing, Static Routing, DMZ Host, and Mac Clone. Select the Advanced tab of the Expert Interface to view the ADVANCED screen. filters Filters settings allow you to configure the Gateway to block selected users who are configured on this network from accessing the Internet.
advanced Select the Filters tab of the Expert Interface to view the FILTERS screen. Advanced: FILTERS Screen ❑ Filtered Private IP Range: Enter the range of IP addresses desired to filter into the IP address range fields. Users with these IP addresses will not be able to access the Internet.
Ethernet gateway in both boxes. For example, if the IP address is 192.168.1.5, enter 5 in each box. ❑ Filtered Private Port Range: Filter users by entering their network port numbers. Select the protocols and enter the range of port numbers that you want to filter into the port number range fields. Users with these port numbers will not be able to access the Internet. ❑ Private MAC Filter: Filter users by entering their physical MAC addresses.
advanced forwarding Select the Forwarding tab of the Expert Interface to view the FORWARDING screen. ADVANCED: FORWARDING Screen port forwarding Port forwarding is used to set up public services on a network, such as Web, FTP, or e-mail servers. When Internet users make certain requests to your network, the Gateway forwards them to specific computers equipped to handle the requests.
Ethernet gateway example, if you set port number 80 (HTTP) to be forwarded to IP address 192.168.1.2, then all HTTP requests from outside users will be forwarded to 192.168.1.2. Enter a valid IP address. You may need to establish a static IP address with your Internet provider in order to properly run an Internet server. For added security, Internet users are able to communicate with the server but will not actually be connected. The packets are forwarded through the Gateway.
advanced dynamic routing Dynamic routing allows the Gateway to automatically adjust to physical changes in network layout. The Gateway, using the dynamic Routing Information Protocol (RIP) protocol, determines the route that the network packets take based on the fewest number of hops between source and destination. The RIP protocol regularly broadcasts routing information to other routers on the network. Select the Dyn. Routes tab of the Expert Interface to view the DYNAMIC ROUTING screen.
Ethernet gateway network with other routers, including a separate network gateway that handles the Internet connection. 2 In the TX field, choose the protocol to transmit data on the network. 3 In the RX field, choose the protocol to receive data from the network. 4 Click Apply to save changes. static routing If your Gateway is connected to more than one network, it may be necessary to set up a static route between them.
advanced Select the Static Routes tab of the Expert Interface to view the STATIC ROUTING screen. ADVANCED: STATIC ROUTING Screen To view current routing table: Click Show Routing Table to see all valid static route entries in use. To create a static route entry: 1 Select a static route entry from the Static Routing drop-down list. The Gateway supports up to 20 static route entries.
Ethernet gateway ❑ Destination LAN IP: Enter the IP address of the remote network or host for which you wish to create a static route. If you are building a route to an entire network set the network portion of the IP address to zero (0). For example, the Gateway’s standard IP address is 192.168.1.1. Based on this address, the address of the network to which the Gateway is connected is 192.168.1, with the last digit (1, in this case) determining the Gateway’s place on the network. Enter 192.168.1.
advanced DMZ host The DMZ Host setting screen allows one local user to be exposed to the Internet for a special purpose such as Internet gaming or video conferencing. Whereas IP Forwarding can only forward a maximum of ten ranges of ports, DMZ hosting forwards all the ports for one PC simultaneously. Warning: This feature disables any firewall protection for the local DMZ host. Select the DMZ tab of the Expert Interface to view the DMZ HOST screen.
Ethernet gateway MAC address clone A Media Access Control (MAC) address is a unique 12-digit identification code assigned to a hardware device. MAC address clone attaches the MAC address of the network card/adapter onto your Gateway that was connected to your cable or DSL modem during installation. This satisfies the requirement by some ISPs that you register this address with them. Select the Mac Address Clone tab of the Expert Interface to view the MAC Address Clone screen.
advanced 5 Enter the 12-digit MAC address, found in the Adapter/Physical Address field, in the User Defined WAN MAC Address boxes on the MAC Address Clone screen. 6 Click Apply to save changes.
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specifications general Model number hn200e Standards IEEE 802.3 (10BaseT), IEEE 802.
Ethernet gateway environmental Dimensions 189.2 mm x 150.9 mm x 53.1 mm (7.45 in x 5.94 in x 2.
glossary 10BaseT Ethernet standard topology for twisted pair (T) cabling (transfer rate of 10 Mbps over 100 meters). 100BaseT Fast Ethernet twisted pair cabling (transfer rate of 100 Mbps over 100 meters). ad-hoc network Group of computers, each with a wireless LAN network adapter, connected as an independent wireless local area network for the duration of a single communications session. An ad-hoc wireless LAN is applicable at a departmental scale for a branch or SOHO (small office/home office) operation.
Ethernet gateway client/server network Network in which one computer (the “server”) shares resources with other computers, called “clients” (as opposed to a peer-to-peer network). CSMA/CD (Carrier Sense Multiple Access/Collision Detect) The protocol for carrier transmission access in an Ethernet network in which each device senses whether the line is idle and then sends data. If another device sends data at the same time, a collision occurs, the data is discarded, and the devices try again.
glossary DNS (Domain Name System) Method for matching Internet domain names with IP addresses. When a Uniform Resource Locator (URL) is entered into a Web browser, a domain name server retrieves the corresponding IP address for the domain name specified (“name resolution”) and sends the request to the appropriate server. Domain names are convenient “handles” for IP addresses. DSL (Digital Subscriber Line) Transmits data bi-directionally at high speeds.
Ethernet gateway FHSS (Frequency Hopping Spread Spectrum) Uses a narrowband carrier that changes frequency in a pattern known to both transmitter and receiver. Properly synchronized, the net effect is to maintain a single logical channel. To an unintended receiver, FHSS appears to be shortduration impulse noise. firewall A set of related programs, located at a network gateway server, that protects the resources of a network from users in other networks.
glossary Internet Worldwide network of networks linking millions of computers together; see also WAN (Wide Area Network). intranet Private home or business network. IP (Internet Protocol) address A unique 12-digit number (for example, 205.112.134.121) identifying each sender and receiver of network packets across the Internet. IPSec (Internet Protocol Security) A developing standard for security on the Internet.
Ethernet gateway network System connecting two or more computers and peripherals enabling them to communicate and share resources. network adapter See NIC (Network Interface Card). network mask See subnet mask. NIC (Network Interface Card) Card or adapter that allows a computer to connect to a network. Also called a network adapter. Ethernet cards and phoneline adapters are examples.
glossary PPTP (Point-to-Point Tunneling Protocol) Protocol allowing corporations to extend their corporate network over the Internet through private “tunnels.” This has the effect of using the Internet as a large private local area network known as a “virtual private network” or VPN. print server A hardware device that enables a printer to be connected directly to a network. protocol Network language allowing devices to communicate.
Ethernet gateway server Computer on a network that provides services to other computers on the network. SPI (stateful packet inspection) The ability of a firewall to remember outgoing requests to the Internet from internal network users and only allow responses to those requests back through the firewall, thus denying attempts to access the local network that have not been requested.
glossary TCP/IP (Transmission Control Protocol/Internet Protocol) Basic communication language of the Internet (but can also be used in private networks). TCP keeps track of individual data packets, while IP handles the actual delivery of the data. TFTP (Trivial File Transfer Protocol) A simple, easy-to-implement protocol for transferring files on a network that lacks most of the features of a normal File Transfer Protocol (FTP) program (it cannot list directories or authenticate users).
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index A administration quick and easy 49 C connections ports 7 D DHCP explained 58 setting up 58 DMZ host 71 dynamic routing 67 E expert interface 49 setup 51 F features listed 6 summary 5 filters explained 62 using 62 forwarding 65 front panel 8 G glossary 77 I introduction 5 IP address 51 L LAN indicators 8 LAN LED 8 LAN ports 7 LEDs 8 log explained 60 using 60 P password changing 54 default 54 port triggering 66 ports 7 power LED 8 power port 7 R RAS 51 rear panel 7 routing dynamic 67 static 6
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regulatory notices hewlett-packard company This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: ❑ This device may not cause harmful interference, and ❑ This device must accept any interference received, including interference that may cause undesired operation. ❑ Pursuant to Part 15.
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