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Forum Replies

  1. Hello Rene,
    about access-list, I have to read in this way: for prefix
    my local router in which run ospf,rip and Eigrp have to put in routing table that one learned by Rip…is it correct my reasoning?
    well we use access-list to permit that prefix is handle only by rip?

  2. Hi David,

    Good question. Administrative distance is always local…it’s never shared between routers.


  3. Hi John,

    I’ve seen this problem before, for some reason it doesn’t work on EIGRP external routes. I just tried it again myself:

    router eigrp 1
    distance 80 1
    access-list 1 permit

    Where is the address of the network and 1.1.10/24 is the network I’m trying to change. When it’s an EIGRP internal route it works right away, external it doesn’t…

    The only other option is using the “eigrp distance” command for all external routes I think.


  4. Hi Robert,

    It is possible but you might have to get a bit creative. You could IP SLA and conditional advertising. Here’s an example I created once for RIP:

    RIP Reliable Default Route

    You can do something similar for OSPF or EIGRP.


  5. great article Rene!

    In your lesson you teach that you can change the admin distance for prefixes in RIP, can you do the same in OSPF? is it isn’t possible, what would be the ways that you could do that?

    thanks for your help!

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