From: Joseph D. Phillips (jphillips@ufcwdrugtrust.org)
Date: Tue Jun 08 2004 - 14:05:16 GMT-3
I would guess that you can't form a neighborship between an EIGRP speaker with a public address and an EIGRP speaker behind a firewall whose address is in the private range, thanks to network address translation.
I should think, however, that there are ways of configuring firewalls to allow the multicast hello traffic transit to the necessary interfaces. The firewall I use at work does routing as well.
-----Original Message-----
From: Joe Chang [mailto:changjoe@earthlink.net]
Sent: Tuesday, June 08, 2004 09:54
To: Victor Kasacavage; Moreau, Franck; ccielab@groupstudy.com; 'Dan'
Subject: Re: My first but not last :( - Need your help.
I guess the question would be whether the firewall can alter the IP
information in EIGRP's RTP packets. Would a Cisco manufactured firewall be
able to do that?
By the way, that's some great advice, thank you Victor.
> RTR A ---- FIREWALL --- RTR B
>
> RTR A and RTR B use EIGRP. Make the routes in RTR A appear on RTR B
> routing table.
>
> Now, what is the problem being presented
> what are the possible options
> which is the best possible solution
>
> The problem is that EIGRP doesn't work through firewalls.....why? It is
> very important to understand the why part as this will let you know if you
> really understand how EIGRP works (I'll leave this one up to the group)
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