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Setting up 2 modem-routers and 1 router, cannot see 2nd network

Discussion in 'Networking' started by Shadowjump, Mar 11, 2010.

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  1. Shadowjump

    Shadowjump Thread Starter

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    Mar 11, 2010
    Messages:
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    Today I decided to move my modem-router over the phone cables box. After plenty of holes and plenty of UTP cable I got +2-2.5Mbit and I'm pretty happy about it.
    There is however a small problem however.

    In the position of the modem-router I installed a router and now I see no network (with the IP 192.168.1.x) from the network 192.168.0.x

    Check the image to see more details

    What's wrong the IP? I have definitely something wrong! Does any subnet need changing? Do I have to change the IP address of the modem-router that ends on the switch?


    HELP!!!

    [​IMG]
     
  2. JohnWill

    JohnWill Retired Moderator

    Joined:
    Oct 19, 2002
    Messages:
    106,418
    The second router needs to be configured as a WAP if you want them all to see each other.


    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 192.168.0.2 through 192.168.0.100, I'd assign the secondary router 192.168.0.254 as it's IP address, 192.168.0.253 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. 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
     
  3. Shadowjump

    Shadowjump Thread Starter

    Joined:
    Mar 11, 2010
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    Thank you very much for the information!

    But, I want to have DHCP enabled in the modem-router because its in another apartment for different devices with a different internet connection. I just want to communicate with the other computers in there.

    Also, from what I know, the DHCP server in the modem-router that is directly connected to the router doesnt have to change, since that modem-router sees only the router.
     
  4. JohnWill

    JohnWill Retired Moderator

    Joined:
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    Messages:
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    Hmm... If you want one network with two ISP feeds, my approach would be a dual-WAN router. This allows you to share the total bandwidth of the two connections and have one network.
     
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