I have setup a router on a stick config before with no issues. I am trying to setup a new one for a customer with a slightly different config. On my 0/0 interface I will have a 200.200.200.x address which is what connects to their sonicwall for WAN traffic. On the 0/1 interface we are moving to a new addressing scheme with multiple VLANs on a 172.16.x.x network. Currently they have a total flat network with everything on the 200.200.200.x network. I am trying to figure out how I can slowly migrate the 200 to the 172 on the second interface. Should the 200 be created on the 0/1 interface as another sub-interface and then route everything out the 0/0 interface or what would be the best way to do this. I am stumped right now.
Thank you in advance.