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Community Member

disable telnet on a Cisco 3550 Switch

We are implementing the SSH connection process on our network and would like to disable telnet at the same time. What is the perferred method regarding this?

Thanks

4 REPLIES
Community Member

Re: disable telnet on a Cisco 3550 Switch

line vty 0 15

transport input ssh

I think would do nicely

Community Member

Re: disable telnet on a Cisco 3550 Switch

hi,

use the following command to disable telnet access.

line vty0 15

trnsport input none

Thanks

C.Senthil Kumar

Community Member

Re: disable telnet on a Cisco 3550 Switch

transport input none will disable both telnet & ssh access, not what your after.

'transport input ssh' will enable just ssh, blocking any telnet requests.

Remember to generate a cypto key and set a domain name on the switch beforehand otherwise ssh wont work.

Good luck

Community Member

Re: disable telnet on a Cisco 3550 Switch

Super....

Thanks for your instructions on this, it worked like a champ.

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