An addendum to my message below: A port scan of the router after the vty's 
are configured for "transport input none" will show nothing on port 23 
(telnet) or port 221 (rlogin). Thus telnet and rlogin would appear to be 
disabled.

jas

At 05:34 PM 5/4/01 -0700, John Starta wrote:
>How about configuring the vty's for "transport input none". It doesn't 
>disable telnet perse, but it results in the router refusing connections to 
>it. (Out-of-band access recommended before applying; you will NOT be able 
>to telnet/rlogin to the router after applying.)
>
>    line vty 0 4
>      transport input none
>
>jas
>
>At 03:41 PM 5/4/01 -0400, Victor Chan wrote:
>>How do you disable telnet port on the cisco router 2524 and 2610?




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