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  • not routing simple setup

    Hi guys, probably a very easy question to answer but I have virtual setup as follows;

    PC0--------S0-----R1------R2--------R3-------S1


    the interface on s0 is 10.10.10.251 (which is a vlan, but I have not set this as a trunk)

    R1 connected to S0 is 10.10.10.1

    R1 int connected to R2 is 192.168.10.1
    R2 int connected back to R1 is 192.168.10.2

    I can ping from the pc
    IP: 10.10.10.2
    Gateway: 10.10.10.251

    to the R1 intface 10.1 but I cannot ping the 192.168.10.1 network

    here is the R1 config;

    10.0.0.0/24 is subnetted, 1 subnets
    C 10.10.10.0 is directly connected, GigabitEthernet1/0
    C 192.168.10.0/24 is directly connected, GigabitEthernet2/0
    S 192.168.20.0/24 [1/0] via 192.168.10.2
    S* 0.0.0.0/0 [1/0] via 192.168.10.2


    I have set a default route out onto the 10.2 interface (next hop)

    but no idea why I cannot ping from pc onto R1 interface and therefore R2.
    Please ignore from R2 onwards as I have not finished this setup and therefore no point doing so untill I can ping pc----> R1 and R2.


    please help

    I know it is something probably simple!!!


    cheers,

    Chris

  • #2
    Re: not routing simple setup

    Does R2 have a route back to your Lan subnet? Remember routing is bi-directional.

    Can you ping between R1 and R2 from both the 10.10.10.0 subnet and the 192.168.10.0 subnet?
    Last edited by auglan; 11th May 2010, 18:37.
    CCNA, CCNA-Security, CCNP
    CCIE Security (In Progress)

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    • #3
      Re: not routing simple setup

      yes,

      I can ping from R2 to the 10.10.10.1 interface but not the 10.251 (switch)
      and yes I can ping the 192.168.10.0 network as these are physically connected

      here is the sh ip route for R2


      Gateway of last resort is not set

      10.0.0.0/24 is subnetted, 1 subnets
      S 10.10.10.0 [1/0] via 192.168.10.1
      C 192.168.10.0/24 is directly connected, GigabitEthernet3/0
      C 192.168.20.0/24 is directly connected, Serial2/0
      R2#

      attached is a network diagram.
      Attached Files

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      • #4
        Re: not routing simple setup

        Is switch 0 a Layer 2 switch? If so that vlan interface is just used for remotely managing the switch. If its a layer 2 switch your default gateway for your pc should be a L3 interface, mainly the 10.10.10.1 interace on R1. You can also set the ip default-gateway on Switch 0 to 10.10.10.1 as well.
        CCNA, CCNA-Security, CCNP
        CCIE Security (In Progress)

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        • #5
          Re: not routing simple setup

          cheers for that works fine now, yes you are correct
          i changed the GW from the switch to that of the R1 interface for that network and now it can route successfully.

          thanks

          Comment


          • #6
            Re: not routing simple setup

            Cool, glad its working
            CCNA, CCNA-Security, CCNP
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