Changing TELNET default port
Is there a way to make the router only listen to a port other than the default 23 port. I tried two things so far:
1- I issued the command "rotary 1" under line vty 0 4. This command allowed telnets to my router on BOTH port #23 and port#3001. However, I'm trying to deny access on port#23.
2- I also tried manipulating the port-map on the router. On my router with IP address of 10.1.1.2, I issued the command "ip port-map telnet port 2323 list 1" . list 1 refers to "access-list 1 permit 10.1.1.1", where (10.1.1.1) is my router that's trying to telnet to my second router (10.1.1.2) using only port 2323. This method still didn't work, as telnets are still allowed to 10.1.1.2 on the default port of 23. In addition to this, telnet to port 2323 on 10.1.1.2 wasn't working after putting the port-map.
Please let me know if I'm missing someting......