From: jihene bouraoui (bouraoui@globalknowledge.fr)
Date: Mon Dec 02 2002 - 10:57:30 GMT-3
have you tried to use some hsrp on ethernet interfaces of routers A and B?
----- Original Message -----
From: Donny MATEO <donny.mateo@sg.ca-indosuez.com>
To: <ccielab@groupstudy.com>
Sent: Monday, December 02, 2002 7:48 AM
Subject: redundant NAT problem.
> Hi Groups
>
> I have a problem.
> suppose the following architecture.
>
> rtrA rtrB
> | |
> |----------- sw1------ |
>
>
> I have a static NAT for host behind sw1. But I want it to be redundant on
both router, since the
> leased line is on rtrA and the ISDN backup is in router B.
> Normally I would define both FE/E interface on RTRA and RTRB as a nat
inside and the serial
> interface on rtrA plus the ISDN interface on rtrB as the nat outside
interface.
>
> The problem is I got a duplicate IP address message after I did the static
mapping. I suppose this
> is normal, as both rtrA and rtrB will announce that they have a host of
the same IP address.
>
> rtrA
>
> int e0
> ip nat inside
> int s0
> ip nat outside
>
> ip nat inside source static 1.1.1.1 2.2.2.2
>
>
> rtrB
> int e0
> ip nat inside
> int s0
> ip nat outside
>
> ip nat inside source static 1.1.1.1 2.2.2.2
>
>
> How do I resolve this duplicate address problem ?
>
>
> Donny
>
>
>
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