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Connecting a WRT54G Through another computer with ICS

Discussion in 'Networking Issues' started by wcbaker, Jan 3, 2005.

  1. wcbaker

    wcbaker Network Guru Member

    Okay, this is probably a very odd request, but I want to connect my WRT54G through a second NIC that I have on my computer. I have normal Cat5 sitting around and a crossover as well. I have tried both, but to no avail.

    The reason for all of this is that my college will not let us have routers in the dorm, unless we pay. However, using one computer as a gateway is a way to get by this. Since I have two computers, this is my best option.

    Thanks in advance.
  2. howardp6

    howardp6 Network Guru Member

    You have to enable Internet Connection Sharing on the NIC that is connected to college network. If you are using Windows XP select the NIC and select the advanced tab and select the enable other users to share this internet connection.

    The host computer must have another NIC, and you indicated that you have one. The other computer will connect to that NIC amd the NIC will have an address of with a sub mask of

    Your host computer will issue addesses in the 192.168.0.X starting with

    You have to logon your client computer with an user-id that has admnstrator privilages.

    You select the start and select setting or control panel and select network connections and select the NIC on your client computer. Select the properies selection.

    Select TCP/IP protocol and select the properties control button.

    Select obtain an IP address automatically and select the OK control button.

    Your ICS host computer always has to be on. I would suggest upu do an IPCONFIG /ALL and check to set that you have a valid IP address on the clients NIC. You do that from a DOS prompt.

    You can repair the connect on the host NIC and check the status, which should give you a valid IP address. The repair of the NIC is equivlalent of an IPCONFIG /RELEASE and an IPCONFIG /RENEW.
  3. wcbaker

    wcbaker Network Guru Member

    Thanks, but this is for how to use ICS to connect one computer to another. I tried this method with the router and it did not work. I want to know how to have the router connected to the second NIC.
  4. howardp6

    howardp6 Network Guru Member

    Your ICS host computer acts as a DHCP server, and issues its own IP Addres in the 192.168.0X range. You can try to use the WRT54G as a hub instead. Connect the second NIC to port four of the WRT54G and disable the DHCP server on the WRT54G. Since your college is restricting the connect of routers, does not the wireless transmission of a signal violate any college policy on 2.4ghz and 5ghz transmissions. My daughter;s college restricts the use of cordless telephones and transmission that may interfere with the colleges wireless network. The stepup you are using is sometimes problematic since DNS may not work.
  5. wcbaker

    wcbaker Network Guru Member

    I tried just plugging in a crossover from the 2nd NIC to the 1st port on the router and didn't change one setting and it works beatifully. It would be better if I could plug it into the Uplink port, but that is simply just nitpicky. If you can think of a way that would be great, but otherwise this works just fine.

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