«

Hi, I am quite new to BGP and I am configuring two sites to connect to
an MPLS network that requires the use of BGP.

The two sites I am connecting to this MPLS network are already
connected to each other via a high speed ATM network. Lets call them
Site A and Site B.
There are several other sites on this ATM network and I am currenty
using EIGRP as the routing protocol on this ATM network.

The routers in Site A and B will be running EIGRP and BGP. To simplify
things I would like to use the same ASN (65000) at both sites that
connect to the MPLS network. This can be done because the provider has
enabled the ASN override feature.

The prefered network to use between the two sites is the ATM network
since it is much faster. I would like to prevent routing loops and
also force the use of the ATM network between Site A and Site B.
I will be configuring route-maps on each router to advertise into the
BGP network.

On the router in Site A running BGP, how can I block routes advertised
into BGP by the router in Site B and vice-verse.
Essentially I would like Router A to discard all BGP routes destined
to router B without having to define a static distribute-list in (or
something similar)

Router A BGP config:

router bgp 65000
no synchronization
bgp log-neighbor-changes
network 10.10.10.0 mask 255.255.255.0
redistribute static
redistribute eigrp 100 route-map eigrp-to-bgp
neighbor 10.99.99.99 remote-as 13979
no auto-summary

Router B BGP config:

router bgp 65000
no synchronization
bgp log-neighbor-changes
network 10.10.11.0 mask 255.255.255.0
redistribute static
redistribute eigrp 100 route-map eigrp-to-bgp
neighbor 10.99.99.77 remote-as 13979
no auto-summary