6.2 Router Hardening
The solution to this task includes setting a local username and "login local" on the vty lines. The reason is that without this the feature will not trigger. No where in the DOCCD is this mentioned. (I couldn't find it in both the "command reference" and "configuration guide" on Cisco's site.)
The reason I bring this up is that we are: "not to change the VTY passwords or access methods unless otherwise specified." I think it should be mentioned that we could change the VTY login to local to make the task complete.