cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
14813
Views
15
Helpful
5
Replies

Configuring a Cisco 2811 2800 Series Router as a Terminal Server using a NM-16 or NM-32

gjames50
Level 1
Level 1

How to configure a Cisco 2811 2800 Series Router using a NM-16A or NM-32A Async Module as a Terminal Server

Please let me know if there is anything I need to correct. I'm posting this to help others and to grow my own skills. The examples below are using the NM-16A and a 2811 Router you may need to make adjustments for your particular hardware.

 

Router>enable
Router#configure terminal
Router(config)#hostname Termserver
Termserver(config)#interface FastEthernet 0/0
Termserver(config-if)#ip address 192.168.111.31 255.255.255.0
Termserver(config-if)#no shutdown
Termserver(config-if)#exit
Termserver(config)#line vty 0 15
Termserver(config-line)#password YourTelnetPassword
Termserver(config-line)#logging synchronous
Termserver(config-line)#login
Termserver(config-line)#exec-timeout 15 0
Termserver(config-line)#exit
Termserver(config)#interface loopback 0
Termserver(config-if)#ip address 192.168.10.10 255.255.255.0
Termserver(config-if)#exit
Termserver(config)#line 1/0 1/15
Termserver(config-if)#transport input telnet
Termserver(config-if)#exit
Termserver(config)#interface Group-Async 0
Termserver(config-if)#no ip add
Termserver(config-if)#encapsulation slip
Termserver(config-if)#group-range 1/0 1/15
Termserver(config-if)#exit
Termserver(config)#enable secret YourSecretPassword
Termserver(config)#service password-encryption
Termserver(config)#^Z
Termserver#copy running-config startup-config

WARNING:
This is not the most secure connection. Do not use telnet outside of your local network. I recommend setting up SSH v2. It doesn’t hurt even inside your local network. Further down I have directions to walk you through setting up SSH.

NOTE:When using the NM-16 or the NM-32 your port/line numbers will need to be determined. This next step will allow you to verify and figure out your port/line numbers.

Router>enable
Termserver#show line

You should see something like this:

   Tty Line Typ     Tx/Rx    A Modem  Roty AccO AccI  Uses  Noise Overruns  Int

      0    0 CTY              -    -      -    -    -     8      0    0/0      -

      1    1 AUX   9600/9600  -    -      -    -    -     0      0    0/0      -

*   1/0   66 TTY   9600/9600  -    -      -    -    -     3     39  438/1318   -

*   1/1   67 TTY   9600/9600  -    -      -    -    -     2     53  441/1328   -

       &