published by whitemice on Thu, 10/04/2012 - 08:00
Performing NAT with any variety of a LINUX box is possibly one of the most redundantly documented applications on the Web. Attempting to do the same with a Cisco IOS router is not documented in so straight-forward a way.
This little snippet shows the configuration for an IOS router where vLAN 13 is a public network and vLAN 12 is a private network. The router has a public IP address of A.B.C.D [netmask: E.F.G.H] and the gateway address is A.B.C.I. The private network is a 10.0.0.0/8 with multiple /24 segments which all route to this NAT gateway.
