[isp-bgp] BGP and policy based routing question

["David Enns" <david@...>]

We just multihomed our network and set up BGP. When we started our ISP 7
years ago we were assigned a small block of 64 ip addresses from ISP 1,
192.168.1.0/26, for our use. We put our first name server on this network.
Now that we have set up BGP this block is unreachable for some networks from
the internet. After doing some troubleshooting we believe that our router is
sending traffic over ISP 2. Because this network is less than a class C it
does not now what to do with the traffic and drops it.

How do I set up policy based routing to look at the source ip address and
send it to ISP 1. Here is what I've tried so far.

!Matches source IP address
access-list 115 permit ip 192.168.1.0 0.0.0.63 any

!Matches IP address and sends it to ISP 1
route-map ns1 permit 10
match ip address 115
set ip default next-hop 192.168.2.1

!Conncetion to ISP 2
interface serial 2/0/1
ip policy route-map ns1

!Interface that has the 192.168.1.0/26 network
interface fastethernet 1/1/0
ip policy route-map ns1

Thanks for your help.

David Enns
david@...








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