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restrict access to telnet

Hi, I want to restrict telnet access to router to one IP (ex. Loopback) - to router IP, not from specific IP. I tried to set ACL for destination IP, but it doesn't work. In debug packet I see x.x.x.x(3354) -> 0.0.0.0(23), 1 packet. Why destination address is 0.0.0.0 ? Could anybody help me ?

1 REPLY

Re: restrict access to telnet

If understand it well, you want to enable telnet to the router on just one IP adress? This can be done easily using the following global command:

ip telnet source-interface .. (for example lo0)

This will cause that responses to telnet packets are always using this source-adress. You can then use access-lists to specify which destinations are allowed.

Regards,

Leo

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