Giuseppe

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.

R2>who

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

R2>

notice that the active session is on the aux.

Syed

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.

HTH

Rick

Hello Rick,

thanks for your attention.

I had recently used an aux on a C2620 to connect to a the console of a C7206VXR.

And I had added transport input all or transport output all under the aux to fix it.

I remenbered about the no exec later.

Best Regards

Giuseppe