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New Member

Disable All Connections to Virtual Terminals

I just received a replacement for a failed Catalyst 3508G. I want to prohibit all access to vty lines and only the switch to be managed from the console port.

I have mental block on how I did this in the past. Can someone provide me a hint?

4 REPLIES
Cisco Employee

Re: Disable All Connections to Virtual Terminals

You could add "transport input none" under line vty 0 15.

New Member

Re: Disable All Connections to Virtual Terminals

That was too simple. Why didn't I remember that in the first place. :)

Re: Disable All Connections to Virtual Terminals

Under the VTY lines, enter no login or no login authentication [your method name].

HTH

Hall of Fame Super Silver

Re: Disable All Connections to Virtual Terminals

Collin

It seems intuitive that no login would prevent access. But it does not work that way. no login would only supress the prompt for passwords and would not prevent access to the vty. The alternative to transport input none would be to configure no exec on the vty lines.

HTH

Rick

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