IP Classless Command Networking How-to

IP Classless

Router(config)#ip classless

Instructs IOS to forward packets destined for an unknown subnet to the best supernet route


Router(config)#no ip classless

Turns off the ip classless command


Note:
A supernet route is a route that covers a range of subnets with a single entry.

Note:
The ip classless command is enabled by default in Cisco IOS Software Release 11.3 and later.