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Forum Replies

  1. Hi !

    I am thinking to lab it up to try it to work. Anything that i should think of when a start with the nbma ? do you just have a switch between the interfaces ?

  2. Hi Oskar,

    I just used a switch to connect the routers to each other. It doesn’t matter much as long as they can reach each others NBMA addresses then you will be fine.

    Rene

  3. Hi Rene,

    First thanks a lot for all that great work you are doing :-).

    I have a drama going on right now and I could not isolate the root cause of the problem.

    Symptoms:

    on my Hub the GRE Tunnel interface stat UP/Down - I am using cisco appliances running Version 12.2(8r).
    Can you please help ?

    -----
    Router_1#show ip inter br
    Interface IP-Address OK? Method Status Protocol
    FastEthernet0/0 unassigned YES TFTP up down
    Serial0/0 unassigned YES NVRAM administratively do

    ... Continue reading in our forum

  4. Hi Rene,
    Could you please check the exact cause of this error. getting following error in spoke router.

    *Dec 14 11:56:50.720: %DUAL-5-NBRCHANGE: EIGRP-IPv4 45678: Neighbor 123.20.1.25 (Tunnel0) is down: Peer Termination received
    *Dec 14 11:56:54.320: %DUAL-5-NBRCHANGE: EIGRP-IPv4 45678: Neighbor 123.20.1.25 (Tunnel0) is up: new adjacency
    *Dec 14 11:56:54.364: %ADJ-5-PARENT: Midchain parent maintenance for IP midchain out of Tunnel0, addr 123.20.1.25 - looped chain attempting to stack”
    

    Topology:
    Hub-----------------------ISP(AS20003)------------------------Spok

    ... Continue reading in our forum

  5. Hi Abdus,

    This message:

    %ADJ-5-PARENT: Midchain parent maintenance for IP midchain out of Tunnel0

    Is usually a recursive routing issue. Your router is probably learning the NBMA address through the tunnel interface, which is why it collapses.

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