Recently we had connectivity problem we with the new 12.3 software and it was related to BGP with our BGP-peer "xxxx" (serial 0/0) . When now running on 12.3 we had to add a new Class-C static route.
When running on 12.2 we had two subnetted static routes
ip route 22.214.171.124 255.255.255.240 126.96.36.199
ip route 188.8.131.52 255.255.255.240 184.108.40.206
When running now on 12.3 we had to add the complete class-C static route to get this network advertised with BGP to our peer "xxxxx" (serial 0/0)
ip route 220.127.116.11 255.255.255.0 18.104.22.168
Can someone tell me the reason why BGP is not "accepting" the subnetted routes and only the complete class-C network in 12.3?