samuel.lao85 wrote: » I everybody, I have the following issue about route selection. This is an extract from our router... I have the following table: 172.16.0.0 /16 is variable subnetted, 5 subnets, 4 masks R 172.16.1.1 /32 (120/1) via 172.16.25.2 serial 0/1/1 R 172.16.1.0 /24 (120/2) via 172.16.25.129 serial 0/1/0 R 172.16.0.0 /22 (120/1) via 172.16.25.2 serial 0/1/1 R 172.16.0.0 /17 (120/2) via 172.16.25.129 serial 0/1/0 R 0.0.0.0 /0 (120/3) via 172.16.25.2 serial 0/1/1 When I write show ip route x.x.x.x command for the IPs, it responses with routes that are confused to me.... For ip 172.16.10.1 it says that matches route 172.16.0.0 /17, but the theory says that it must match the route with the longest prefix lenght and I think it has to be 172.16.0.0 /22. For ip 172.16.130.1 it says that matches route 0.0.0.0, what about route 172.16.0.0 /22, can it fit there ? I think so. For ip 172.16.125.1 it says that matches the route 172.16.0.0 /17, the same think, what about 172.16.0.0 /22 ? Please a little help because i´m confusing..
