Saturday, November 14, 2009

Setting up Terminal Server on Cisco Router

To Setup a Terminal server on cisco router you require Async module on the router. Cisco routers like 2511 comes up with such interfaces. You will need Octal cable to connect the console RJ-45 of devices to the Async interface.

The lines for 2511 starts from 2001 to 2008 for an Async interface. Below is the sample config which i use for my Lab's access server.




interface Loopback0
ip address 70.70.70.70 255.255.255.255

no ip directed-broadcast
!


ip host S3 2011 70.70.70.70
ip host R7 2007 70.70.70.70
ip host R6 2006 70.70.70.70
ip host R4 2004 70.70.70.70
ip host R3 2003 70.70.70.70
ip host S2 2010 70.70.70.70
ip host S1 2009 70.70.70.70
ip host R5 2005 70.70.70.70
ip host R2 2002 70.70.70.70
ip host R1 2001 70.70.70.70
ip host S4 2012 70.70.70.70
ip host R8 2008 70.70.70.70



line con 0
exec-timeout 0 0
logging synchronous
transport input none
line 1 16
no exec
transport input all

Now that the router is configured we use the following commands to navigate.
- to access a device

telnet 70.70.70.70. 2001

- to switch between active sessions

ctrl-shift-6-x will bring you back to terminal server
show sessions will display the active sessions
entering a number of a session will let you access that session
- to disconnect a session
use the disconnect command

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