I don't think you want to do that. If you have the bucks for 4 internet
circuits, you should have the bucks for a firewall or another router behind
your edge router to do the nat. I doubt that this will work. In fact, If
you have any asymmetric routing going on at all (packets going out one
interface and returning on a different one), It flat out won't work.
I can foresee so many issues with this setup that I wouldn't even attempt
it. I suppose that if you had just static mappings and tweaked the BGP just
right it might work. But if you have a circuit failure and BGP rolls over
to another interface, it will break the sessions. Load balancing will be a
nightmare. So will peering. Maybe this could be done with loopbacks and
policy routing on the inside interface pointing at the loopbacks for the
next hop... I don't know. It sounds too ugly even to try. Maybe I'm
wrong, Anybody else ever try this ???
My humble opinion...... Get a firewall or another router.
Tony M.
#6172
----- Original Message -----
From: Justin Lofton
To:
Sent: Sunday, July 22, 2001 1:02 PM
Subject: Configure Nat with BGP [7:13265]
> I'm trying to configure NAT on a router that is running BGP between 4
> internet circuits. Can't find anything on CCO. Which interface do I use
as
> ip nat outside? Just one or all four? I'm confused. Can anyone out there
> help me with this one?
>
> Thanks Everyone!
>
> Justin Lofton
> Account Executive/CCNA
> Tredent Data Systems
> [EMAIL PROTECTED]
> V: (818) 222-3770
> F: (818) 222-3778
> http://www.tredent.com/
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=13274&t=13265
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
