ios 12.0(10) isis support?

[__TheCio__]

Hello the router im using is the cisco 2500 with ios 12.0(10), I have attempted to use isis routing but the interface command "ip router isis" is not avaiable and when turning routing on via router isis command the sub command does not include the net command. Am I doing something wrong or does the ios not support isis. Help would be great

thanks

[s.jankowski]

The issue may be the Tags used in router IS-IS and the tags used ip router IS-IS may not match. If the tags do not match the interface wont come up.