my question is simple: if I am logged into a Cisco router via console or ethernet in priviledged mode, is there a command to initiate a connection through the local AUX port to a nearby console port of another router/switch?

(alternatively, could I accomplish this if I configured reverse telnet on the local router and then type the command "telnet local_loopbackIP 2xxx" port?)



1 Answer 1


Yes, just telnet to a local (up) interface using port 2001. Aux 0 is (always?) line 1.

int loopback0
 ip address
line aux 0
 transport input all
 transport output all

Telnet 2001.

  • 1
    show line to find the tty for aux. In one case, mine is 161.
    – Ricky
    Commented Sep 17, 2014 at 20:17
  • Thanks, Ricky. I was trying to find an example (on my gear) where the aux was something other than line 1. What platform has it as line 161?
    – Ryan
    Commented Sep 18, 2014 at 12:41

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