[c-nsp] Subnetting problem

[Joseph Mays]

It feels strange to be asking a question about something as simple as a subnet here, but I'm honestly not sure what's going on in this case. Probably something simple.

As you can see from the following set of commands, the router is fine with breaking the following addresses up into /30's, but not fine with the aggregate of the two routes into a /29.

gw1.armplc(config)#ip route 216.24.2.4 255.255.255.252 216.24.0.54
gw1.armplc(config)#no ip route 216.24.2.4 255.255.255.252 216.24.0.54
gw1.armplc(config)#ip route 216.24.2.8 255.255.255.252 216.24.0.54
gw1.armplc(config)#no ip route 216.24.2.8 255.255.255.252 216.24.0.54
gw1.armplc(config)#ip route 216.24.2.4 255.255.255.248 216.24.0.54
%Inconsistent address and mask