I have CCIE lab at home (14 Cisco
routers/switches). I am using Cisco 2511 as terminal (serial) server
for accessing all other devices’ console. The loopback IP address has
been created; ip host R4 on 8th port has been defined. I am able to
connect to router R4 but I cannot return back to Cisco 2511. The same
result is for every router on every port...
TermServer#R4       
Trying R4 (172.21.1.1, 2008)... Open
Router>
Router>
Router>
Router>
Router>exit      
Router con0 is now available
Press RETURN to get started.
Router>exit
Router con0 is now available
Press RETURN to get started.
It
seems like sequence Ctr Shift 6 x doesn’t work. I tried with Secure
CRT, Putty on Vista and Hyper terminal on XP but the outcome was always
the same…This is the configuration of 2511.
TermServer#sh run
TermServer#sh running-config
Building configuration...
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname TermServer
!
!
ip subnet-zero
ip host R4 2008 172.21.1.1
!
!
!
interface Loopback1
 ip address 172.21.1.1 255.0.0.0
 no ip directed-broadcast
!
interface Ethernet0
 no ip address
 no ip directed-broadcast
 shutdown
!
interface Serial0
 no ip address
 no ip directed-broadcast
 no ip mroute-cache
 shutdown
!
interface Serial1
 no ip address
 no ip directed-broadcast
 shutdown
!
ip classless
!
!
line con 0
 transport input none
line 1 16
 session-timeout 1
 no exec
 transport preferred none
 transport input all
line aux 0
line vty 0 4
!
End
After 1 minute the session is auto terminated because of session-timeout 1 command.
Any suggestion what might be a problem?

Hi,

Check out the below link !!

http://www.cisco.com/en/US/tech/tk801/tk36/technologies_configuration_example09186a008014f8e7.shtml

Hope to Help !!

Ganesh.H