eigrp set next hop

Andrey Khomyakov khomyakov.andrey at gmail.com
Mon Apr 18 21:57:39 CDT 2011


The goal is to withdraw the prefixes should any part of the connection go
down.
Unfortunately  router1--router2--firewall is part of a production setup and
not easily changed. The idea is really to have something like this (ideally
without router2):

router1-router2-firewall-router3
    |                             |
   router4-firewall-router5

I just wanted to check if I'm missing some knowledge about redistributing
BGP into EIGRP. It appears that there is really no way to manipulate
next-hop value. (no ip next-hop-self eigrp 1 is not really an option because
there are many more prefixes coming from other routers that are being
redistributed to router2 from router1)

I will see if the network will allow BGP on router2. That seems to be the
only clean solution for this.



On Mon, Apr 18, 2011 at 9:25 PM, David Swafford <david at davidswafford.com>wrote:

> What's the real goal behind this?  What your describing sounds like a
> horrible band-aid....
>
> David.
>
>
> On Mon, Apr 18, 2011 at 5:08 PM, Andrey Khomyakov <
> khomyakov.andrey at gmail.com> wrote:
>
>> Hi nanog
>>
>> I need to advertise EIGRP route with a different next-hop value than self
>>
>> Due to how the connections are setup, I have to run BGP between two peers
>> that are 3 hops away from each other.
>>
>> router1--router2--firewall--router3
>> I'm running EBGP between router1 and router3
>> router1 is redistributing into EIGRP that's running with router2
>>
>> The problem is that now router2 thinks that router3 routes are reachable
>> via
>> router1 so I have myself a route loop.
>>
>> Is there a way to advertise an EIGRP route with next hop of router3 (or
>> firewall for that matter) rather than router1 which is what EIGRP does by
>> default
>>
>> Thank you in advance for advice.
>>
>> --
>> Andrey Khomyakov
>> [khomyakov.andrey at gmail.com]
>>
>
>


-- 
Andrey Khomyakov
[khomyakov.andrey at gmail.com]



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