Cisco pppoe client can connect multiple pppoe sessions

Discussion in 'Cisco' started by John Nordien, Nov 22, 2004.

  1. John Nordien

    John Nordien Guest

    I have a Cisco 1600 series router that is being used as a an internet
    gateway to a DSL internet service.
    I am running IP/FW/NAT. Several fixed NAT entries are forwarded to internal
    servers using interface
    DIALER 1 as the primary internet interface. We have several fixed IP
    addresses according to the
    dialup profile and using PAP authentication. The combination of
    username/password determines the
    IP address assigned at connect time.

    Current router situation

    |
    internal LAN | -10.0.0.1 (e0) --- (e1)-> Dialer 1 (pppoe) IP1 =
    172.16.0.1 ---> INTERNET
    | (NAT/PAT)

    ip route 0.0.0.0 0.0.0.0 Dialer 1
    No routing protocols used.


    The Cisco pppoe client can connect multiple pppoe sessions so I have tried
    to set up the
    following network addition.
    NAT entries fwd packets from 172.16.0.1:80 to 10.0.0.9:8081 successful.
    NAT entries fwd packets from 172.16.0.2:80 to 10.0.0.9:8084 not working.


    |- TCP=8081 --| |Dialer 1 (pppoe) IP1 =
    172.16.0.1 --> INTERNET
    10.0.0.9 -| >-10.0.0.1 (e0) -- (e1)-|
    |- TCP=8084 --| (NAT/PAT) |Dialer 2 (pppoe) IP2 =
    172.16.0.2 --> INTERNET

    ip route 0.0.0.0 0.0.0.0 Dialer 1
    No routing protocols used.

    What I am trying to do is to have multiple port 80 FWD through the router to
    different ports on the
    inside network. In this one case 2 different TCP(80) NAT/PAT'ed to the
    same server using different
    TCP ports.
    Case 1 is to have 172.16.0.1:80 --> NAT/PAT --> 10.0.0.9:8081
    Case 2 is to have 172.16.0.2:80 --> NAT/PAT --> 10.0.0.9:8084


    I have the multiple DSL pppoe sessions established, and the NAT/PAT
    established for TCP:8084 but
    clients cannot complete their web sessions. I suspect that routing is the
    problem as internal hosts
    are using 10.0.0.1 as the default gateway and my gateway is using Gateway
    Of Last Resort out
    interface DIALER 1.

    Is this a workable situation?

    Thanks for any & all help.

    John.
     
    John Nordien, Nov 22, 2004
    #1
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