I need to convert the IPs for the largest part of our network from 172.30.0.0 255.255.0.0 to 172.20.6.0 255.255.252.0. I'd like to migrate it in 'sections' at a time instead of all at once.
I have a spare Cisco 2621 w/ 2 ethernet interfaces. Could I configure it with an IP from 172.30.0.0 on interface 0 and an IP from 172.20.0.0 on interface 1 and use that to route between the 2 subnets? Using this senerio both interfaces from the 2621 would connect to the same switch... ie both subnets would be on the same 'network'. Will this work? Any other ideas? Thanks, Duane.