Your decision to block traffic from each interface looks good. But from further information given (too many functions on the equipment), I think you need to install BGP and try out some out traffic management tools.
Questions:
1. do they have same subnet mask?
2. will peering not be a solution here?
seyitan OSUNADE
>From: Brian Longwe
>To: afnog at afnog.org
>Subject: Cisco access list - multihomed question
>Date: Sat, 27 Oct 2001 18:17:31 +0300
>
>Hi,
>
>The scenario.
>
>- Two upstream circuits on the same border router
>- I want to use one to carry (outgoing) traffic for certain customer networks only
>- I want to use the other as the standard default for all other customer traffic
>
>
>
> Upst #1 s0/0 [---------]
>--------------------[ ]< Upst #1 should route traffic for x.y.z.0/25
> [ ]
>--------------------[ ]
> Upst #2 s1/0:16 [---------]< Upst #2 should route traffic for all others
>
>- Both upstream connections go to the same provider
>- There is no BGP with upstream provider, only static defaults (until now)
>
>Instinctively I want to define route-maps to block traffic for #2 from #1 and block traffic for #1 from #2 with a "next-hop" statement to redirect in each route-map.
>
>Is this the right logic? Anyone with similar experience who can give tips?
>
>Thanks,
>
>Brian Longwe
>
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