Cisco Routers - Disable Telnet

To disable Telnet on Cisco routers which already have SSH enabled, follow these steps:

# config t

(config) # line vty 0 15

(config) # transport input ssh

(config) # quit

# copy run start


Detailed info on SSH configuration here:

http://www.cisco.com/en/US/tech/tk583/tk617/technologies_tech_note09186a00800949e2.shtml