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New Member

Telnet access - TCP 6129

I have a router that responds to telnet on 6129. I also have an access-list permitting specific ip address tied to an access-class, applied inbound to my VTY ports. What is this port and how do I remove it? Please advise and thanks!

4 REPLIES

Re: Telnet access - TCP 6129

can you post the relevant acl # configuration and router type.

Rgds

Jorge

Hall of Fame Super Silver

Re: Telnet access - TCP 6129

Matt

The question of what is it is easier than the question of how do you get rid of it.

The port in question is a reverse telnet port. We are generally familiar with reverse telnet to ports in the 2000 range. But Cisco also supports reverse telnet to ports in the 4000 and 6000 range. My understanding is that the 6000 range is like the 2000 range except that it does not generate carriage return/line feed at carriage return in the session. So it looks like a reverse telnet to line 129.

I am not clear about why it is being generated or how to remove it.

HTH

Rick

New Member

Re: Telnet access - TCP 6129

I was able to fix this by applying the access-class to line aux 0. Thanks for the help!

Hall of Fame Super Silver

Re: Telnet access - TCP 6129

Matt

I am glad that you were able to fix it. Thank you for posting back to the thread and indicating what resolved the issue.

HTH

Rick

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