I'm having problems with setting the escape-character on the console and the vty lines using the cli on a 2960-24TT-L running 12.2(50)SE.
Here's a sample:
Switch(config)#line con 0
% Invalid input detected at '^' marker.
Is there another way of setting the escape-character to the ESC key or has Cisco introduced a new bug in the latest IOS release?
Luckily, I haven't upgrade any of the other switches and they are still running 12.2(46)SE and setting the escape-character there goes without any hickups.
I think that it is bug related to "CSCsy59228" if it works Single character of number from 0-9.
CSCsy59228 Bug Details
Escape-character broken for more than one character 12.2(50)SG.
Cannot use more than one character under 'escape-character' feature for Cat4500 in release 12.2(50)SG
Release 12.2(50)SG, 12.2(50)SG1
Further Problem Description:
Single character works. We can use a number from 0-9.
Therefore, you need to downgrade to a non-affected version of this code.