This is often an annoying problem. Mistype a command and the router thinks you just typed a hostname. For example:
MyRouter#shwo
Translating "shwo"...domain server (10.1.1.2)
% Unknown command or computer name, or unable to find computer address
MyRouter#
Here, we just mistyped the word show. We didn't want to telnet to a device named "shwo." The way to handle this is to change the preferred transport method:
! Console port
line con 0
transport preferred none
! VTY Ports
line vty 0 5
transport preferred none
The output shows the lack of a failed connection based on our mistyped keyword:
MyRouter#shwo
^
% Invalid input detected at '^' marker.
Take Care
