At 10:17 PM 6/17/2002 +0800, Nick Kraal wrote:
Three step solution:
1)Continue to run EBGP with you
2)Make them run IBGP with each other.
3)IBGP Next-Hops should be advertise in the IGP of each domain.
Each Step explanation:
1)They would get Internet connectivity from you.
2)Internal IBGP routes are announced to each domain
3)At the IBGP speaking routers create static routes for each others peering
addresses
and point them to your edge box. Annouce these static routes in each
domain.
Hope this helps
Zaheer
>We have a customer that has transit services from us. They have split their
>network into two /19 and run BGP with us at two different locations. Each
>/19 is actually for two seperate businesses; one a tier-2 ISP and the other
>VoIP provider. Two physically sperate networks are also running the same ASN
>and are to peer with each other via our network. There is no internal
>interconnectivity between them or any IGP running.
>
>The problem lies in that to reach each other they need to 'transit' via our
>network and according to BGP, one cannot announce back the client prefixes
>learnt from the other network and vice versa as both of them are running the
>same ASN. This is to prevent routing loops.
>
>In this case is there a method to overwrite this so that the first /19
>network will be able to reach the second /19 network via ours?
>
>Thanks in advance.
>
>-nick/
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:12:00 EDT