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HP Digital Home Networking - Frequently Asked Questions for Gateway

Introduction
This document covers the frequently asked questions for the HP Digital Home Networking Gateways. The frequently asked questions are grouped in five sections for convenience.
Gateway general questions
  1. 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. NAT also allows the Gateway to be used with low-cost Internet accounts, such as DSL or cable modem, where only one Transmission Control Protocol/Internet Protocol (TCP/IP) address is provided by the Internet Service Provider (ISP). The user may have 253 private addresses behind this single address provided by the ISP.
  2. What type of firewall does the Gateway have?
    The Gateway uses NAT and TCP/IP port inspections.
  3. Is the Gateway cross-platform compatible?
    Any platform that supports Ethernet and TCP/IP is compatible with the Gateway.
  4. Does the Gateway replace a modem? Is there a cable or DSL modem in the Gateway?
    No, the Gateway must work in conjunction with a cable or DSL modem.
  5. Which modems are compatible with the Gateway?
    The Gateway is compatible with virtually any cable or DSL modem that supports Ethernet.
  6. How can I check whether I have static or DHCP IP Addresses?
    Consult your ISP to obtain this information.
  7. How do I get mIRC to work with the Gateway?
    On the PC on which you are using mIRC, click the Forwarding tab on the Expert Interface and set Port forwarding to 113 (see "forwarding" on page 72 of the Appendix: Expert Interface). If you experience difficulty after setting port forwarding, try changing the Direct Client-to-Client (DCC) settings to a range from 1024 to 1030 on the DCC option of the Forwarding settings page of the Expert Interface.
  8. 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.
  9. 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.
  10. If DMZ Hosting is used, does the exposed user/PC share the public IP address with the Gateway?
    No.
  11. Does the Gateway pass PPTP packets or actively route PPTP sessions?
    The Gateway allows Point-to-Point Tunneling Protocol (PPTP) packets to pass through.
Installation and configuration questions
  1. How many IP addresses can the Gateway support?
    The Gateway supports a maximum of 253 IP addresses.
  2. 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.
  3. Does the Gateway support any operating system other than Windows 95, 98, Me, 2000, or XP?
    Yes, but Hewlett-Packard does not provide technical support for setup, configuration, or troubleshooting of any non-Windows operating systems at this time.
  4. If all else fails in the installation, what can I do?
    Reset the Gateway by pushing the Reset button for at least three seconds, then reset your cable or DSL modem by turning the unit off and then back on. Obtain and flash (upload) the latest firmware release from the Hewlett-Packard Web site.
  5. Does the Gateway function in a Macintosh environment?
    Yes, but the Gateway's setup pages are accessible only through Internet Explorer v4.0 or Netscape Navigator v4.0 or higher for Macintosh PCs.
  6. I can not get the Web configuration screen for the Gateway. What can I do?
    You may have forgotten to remove the proxy server settings on your Internet browser, such as Netscape Navigator or Internet Explorer. Or, remove the dialup settings on your browser. Check your browser for documentation.
  7. Will the Gateway allow me to use my own public IP addresses and domain, or do I have to use the IP addresses provided by the Gateway?
    The Gateway mode allows customization of your public IP addresses and domain.
  8. How many ports can be simultaneously forwarded?
    Theoretically, the Gateway can establish 520 sessions at the same time, but you can only forward 10 rantes of ports.
  9. 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.
  10. My Web pages hang up, I get corrupted downloads, or junk characters are being displayed on the screen. What can I do?
    Force your Ethernet network interface card (NIC) to 10 Mbps or half duplex mode and turn off the Autonegotiate feature temporarily (go to the Network Control Panel in your Ethernet Adapter's Advanced Properties tab). Check with your NIC manufacturer for more information.
Supported software questions
  1. 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.
  2. 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. Set your proxy settings to No Proxy Server in File>Preferences.
  3. I set up an Unreal Tournament server, but others on the network cannot join. What do I do?
    If you are running a dedicated Unreal Tournament (UT) server, you must create a static IP address for each of the network PCs and forward ports 7777, 7778, 7779, 7780, 7781, and 27900 to the IP address of the server. If you want to use the UT server admin, forward another port (8080 usually works well), then in the [UWeb.WebServer] section of the server.ini file, set the ListenPort to 8080 to match the mapped port above and ServerName to the IP assigned to the Gateway from your ISP.
  4. Can multiple gamers on the LAN log on to one game server and play simultaneously with just one public IP address?
    It depends on which network game you are playing and what kind of game server you are using. For example, UT supports multi-login with just one public IP address.
  5. How do I get Half-Life:Team Fortress to work with the Gateway?
    The default client port for Half-Life is 27005. The PCs on your LAN must have “+clientport 2700x” in the HL shortcut command line; the x would be 6, 7, 8, and on up. This allows multiple PCs to connect to the same server. One exception: version 1.0.1.6 will not let multiple PCs with the same CD key connect at the same time, even if they are on the same LAN (it is not a problem with version 1.0.1.3). For hosting games, the HL server does not need to be in the DMZ. Just forward port 27015 to the local IP of the server PC. There remains, however, a problem with people being booted after a few minutes with an illegible server message.
  6. Does the Gateway support IPsec?
    A new IPsec pass-through feature is now included.
Supported features
  1. 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.
  2. Is IPSec Pass-Through supported by the Gateway?
    Yes, it is a built-in feature that the Gateway automatically enables.
  3. 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. IPX, a NetWare communications protocol used only to route messages from one node to another, and AppleTalk, a communications protocol used on Apple and Macintosh networks, can be used from LAN to LAN connections, but those protocols cannot connect from WAN to LAN.
  4. Does the WAN connection of the Gateway support 100 Mbps Ethernet?
    Since broadband Internet connections like cable and DSL do not exceed 10 Mbps, the Gateway’s current hardware design only supports 10 Mbps Ethernet on its WAN port. It does support 100 Mbps through the built-in auto-sensing Fast Ethernet 10/100 switch on the LAN side of the Gateway.
  5. Does the Gateway support SPI?
    Stateful packet inspection (SPI) is a new feature of the Gateway.
Wireless networking information
  1. Can I play computer games with other members of the wireless network?
    Yes, as long as the game supports multiple players over a LAN. Refer to the game’s user’s guide for more information.
  2. What is the IEEE 802.11 standard?
    The IEEE 802.11 Wireless LAN Standards Subcommittee of the Institute of Electrical and Electronics Engineers (IEEE) is formulating a standard for the industry to enable wireless LAN hardware from different manufacturers to communicate with one another.
  3. What IEEE 802.11 features are supported?
    HP wireless products support the following IEEE 802.11 functions:
    • Carrier Multiple Sense Access/Collision Detect (CMSA/CA)
    • Acknowledge protocol
    • Multi-channel roaming
    • Automatic rate selection
    • Request-to-send/ Clear-to-send (RTS/ CTS)
    • Fragmentation
    • Power management
  4. Would information be intercepted while transmitting on air?
    Wireless LAN features two-fold security protection. On the hardware side, as with Direct Sequence Spread Spectrum (DSSS) technology, the devices have the inherent scrambling security feature. On the software side, wireless LAN offers Wired Equivalent Privacy (WEP) encryption to enhance security and access control.

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