I know this is probably going to be a stupid question but how do I disable a router's auxilary port. I know that to set it up you start with "line aux 0" in the configuration but I don't see where you can shut it down.
transport input none seems to be the default on the line aux since it does not show up in the running config after being configured:
R2(config)#line aux 0
R2(config-line)#transport input none
R2(config-line)#do sho run | begin line aux
line aux 0
transport output none
line vty 0 4
And while transport input none and transport output none are effective on the vty they are not effective on the aux. Here is what happens when I connect on the aux which has been configured with transport input none:
R2 tty1 is now available
Press RETURN to get started.
Line User Host(s) Idle Location
0 con 0 idle 00:00:22
* 1 aux 0 idle 00:00:00
Interface User Mode Idle Peer Address
notice that the active session is on the aux.
autocommand exit is a very creative solution and I believe would be pretty effective. But there is a more simple solution which is highly effective. Under line aux 0 configure "no exec". Then if anyone should connect to the aux port there is no reaction and effectively the port is dead.
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