[139748] in North American Network Operators' Group
Re: eigrp set next hop
daemon@ATHENA.MIT.EDU (Andrey Khomyakov)
Mon Apr 18 22:58:08 2011
In-Reply-To: <BANLkTikx7ma=m8_Sps75s-mJc62O9N-P=Q@mail.gmail.com>
From: Andrey Khomyakov <khomyakov.andrey@gmail.com>
Date: Mon, 18 Apr 2011 22:57:39 -0400
To: Nanog <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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@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@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@gmail.com]
>>
>
>
--
Andrey Khomyakov
[khomyakov.andrey@gmail.com]
