12-31-2007 09:01 AM - edited 03-09-2019 07:44 PM
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!
12-31-2007 02:37 PM
can you post the relevant acl # configuration and router type.
Rgds
Jorge
01-02-2008 10:15 AM
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
01-02-2008 02:10 PM
I was able to fix this by applying the access-class to line aux 0. Thanks for the help!
01-02-2008 02:16 PM
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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