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Forum Replies

  1. Hi Rob,

    There’s a big difference between the two. An EIGRP router that is configured as a stub does not receive queries when one of its neighbors loses a network.

    Passive-interface is about sending hello packets on an interface. Normally when you use the network command to advertise something then it does two things:

    1. It advertises all networks that fall within the range of your network commmand on all active interfaces.
    2. It sends hello packets on all active interfaces that have networks that fall within the range of your network command.

    When you enable passiv

    ... Continue reading in our forum

  2. Hello Jeremy

    This is a great question and it brings up some subtle points of how EIGRP functions. Queries are subject to the split horizon rule just like advertisements are. If you get a query for a network from an interface, you never send out a query for that same network from that interface.

    So in the first case, when R2 lost connectivity to the loopback network, it sent a query to R1 for an alternate route to that destination. This is because in this case, R1 is not a stub. Because R1 got a query from R2, it did not send a query back to R2 via that inte

    ... Continue reading in our forum

  3. Thank you Lazaros,
    It is clear for me, and I have to say that I am one of the luckiest person that I have Lazaros.

  4. Hello Rene,

    I took some time to lab this “eigrp stub redistributed” out and found some interesting parts (if only “redistributed” is in it without “connected” and “summary”)
    The Stub router will only advertise if you use the eigrp “redistribute” command with an foreign routing protocol or another EIGRP AS it wont advertise the route if you use “redistribute connected” or “redistribute static” you need to manually

    ... Continue reading in our forum

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