access list 1

[snowghost]

I wanted to restrict Telnet access to our Cisco router and set up an access-list for allowing any node Telnet access on our class C license. Then I set the vtys such that 6-10 were set to access-list 1.

My question is do I need set the aux (5) or cty (0) ports at all? Also the configuration says "Line(s) not in async mode -or- with no hardware support: 1-4" So I'm assuming these don't need to be addressed.

Thanks in advance.

EdB
MCSE

 

[fmonteiro]

Telnet users connects to vty ports. By default you normally have 5 vty ports, assigned to lines 1 to 5, or from 6 to 10, as in your case. Line 0 (or 5 in your case) is assigned to the aux port, which may be used for an async modem connection (dial in, for remote support). Do a sh line, and everything would be clear for you.
So, you dont need to address line 5.

 

[snowghost]

Makes sense. Except what is the "0 cty" port for?

 

[fmonteiro]

This is the port assigned to the console. If you have a console attached to the router please check this field.