Advertise Route BGP


We inherited a network here which has an MPLS setup between three offices. All three of these offices do BGP with the ISP. I created an IPSEC vpn on an ASA in the 1 office. Most servers are in a second office. When I asked the ISP to add the route into the MPLS they stated I needed to simply advertise that route.

Currently it's not working an am looking for guidance. I have 2 Cisco 2801 routers as my edge device doing bgp.

on the office 1 I did an IP route ( = the next hop for the device - the asa doing the vpn) This works and the tunnel traffic gets there as you would expect it to if you traceroute from that office.

The problem is the route isn't advertising via BGP

under the router bgp I added network as well to advertise as this is how the ISP instructed me to do it. I am afraid I simply do not know enough about BGP to guess any further. Am I missing something ? I was able to confirm no access list is being used to limit routes that get advertised. I was under the impression that when I do an IP route command that is all BGP needs to know that it should be advertised?
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John MeggersNetwork ArchitectCommented:
I would do reverse-route injection (RRI) on the ASA to add the VPN route into the IGP, then configure that network as being advertised in BGP.  Or you could redistribute statics in to BGP.  You can't just advertise the route without it already being in the IGP routing table of the router.

router bgp xxx
network a.b.c.d mask

For RRI see

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please post below o/p
1) sh ip bgp neighbor advertised-routes
2) sh run | s bgp

3) sh ip route

Ur router will need a route in local routing table were we configure BGP.
do u simply advertised BGP by network or any route-map or prefix is allowed.

If you can post whole config will be appreciated...
Phelms215Author Commented:
I found that the problem with my config was I only had network XXX.XXX.XXX.XXX without the netmask

after adding it with network XXX.XXX.XXX.XXX mask it worked perfectly.
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