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Connecting 1 wireles (comp) through WRT54GL to Secondary computer (LAN)

Discussion in 'Networking' started by SLOJack, Dec 21, 2010.

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  1. SLOJack

    SLOJack Thread Starter

    Dec 21, 2010
    Hello i hope this doesnt sound to stupid.

    I have been reding through tons of posts, but i havent been able to find a way to connect my labtop, that has a mobile modem and wireless so that ICS would pass through wireless to my WRT54GL (DD-WRT) and connect to my secondary computer through LAN Cable.

    I would apreciate any help you guys could provide, it would be a life saver.

  2. etaf

    etaf Moderator

    Oct 2, 2003
    First Name:
    if the laptop is wireless then you should be able to connect directly to the wireless router - then its just a case of file sharing - no need for ICS at all

    You dont need to the mobile modem or wireless - if the laptop already has a built in wireless adapter - if not then you can use the mobile wireless to connect to the router

    what window versions do you have on each PC
  3. SLOJack

    SLOJack Thread Starter

    Dec 21, 2010
    Mobile is mobile modem(GPRS) ZTE that is pluged into the labtop. Basicaly i need to forward the internet connection through built in wireless to a router that then transmits it forward through cable.
  4. TerryNet

    TerryNet Moderator

    Mar 23, 2005
    First Name:
    Setup the router as follows and enable ICS on the Mobile connection.

    JohnWill's procedure (Aug. 30, 2008) for configuring a secondary router as a switch and, optionally, wireless access point follows.

    Connecting two (or more) SOHO broadband routers together.

    Note: The "primary" router can be an actual router, a software gateway like Microsoft Internet Connection Sharing, or a server connection that has the capability to supply more than one IP address using DHCP server capability. No changes are made to the primary "router" configuration.

    Configure the IP address of the secondary router(s) to be in the same subnet as the primary router, but out of the range of the DHCP server in the primary router. For instance DHCP server addresses through, I'd assign the secondary router as it's IP address, for another router, etc.

    Note: Do this first, as you will have to reboot the computer to connect to the router again for the remaining changes.

    Disable the DHCP server in the secondary router.

    Setup the wireless section just the way you would if it was the primary router, channels, encryption, etc.

    Connect from the primary router's LAN port to one of the LAN ports on the secondary router. If there is no uplink port and neither of the routers have auto-sensing ports, use a cross-over cable. [You will not need a cross-over cable if one of the "routers" is a computer.] Leave the WAN port unconnected!

    This procedure bypasses the routing function (NAT layer) and configures the router as a switch (or wireless access point for wireless routers).

    For reference, here's a link to a Typical example config using a Netgear router

    EDIT: PS--it doesn't matter that the secondary router will be connected to the primary (laptop) by Wi-Fi instead of ethernet; still the same setup.
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