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Cisco IOS 10.3 How do I setup telnet?

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by dbaideme 1 view

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I have a Cisco 2501 router (IOS 10.3)and I am unable to connect to the router via telnet. I have configured the router with a valid IP address that I am able to ping however I am unable to telnet to the router.

3 replies

by rcc

The following is an example illustrating an access list denying all in-bound Telnet access to the auxiliary port and allowing Telnet access to the router only from IP address 192.32.6.7:

access-class 51 deny 0.0.0.0 255.255.255.255
access-class 52 permit 192.32.6.7
line aux 0
access-class 51 in
line vty 0 4
access-class 52 in

To disable connections to the echo and discard ports, you must disable these services completely with the no service tcp-small-servers command

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