Cannot return back to Cisco 2511 after telnet?

[Franjo Pongrac]

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?

[Reza Sharifi]

Hi Franjo,

In your example, after login to R4 if you want to get back to the 2511, hold down "ctrl+shift+6" at the same time than "x".

HTH

Reza

[Franjo Pongrac]

Hi Reza,

I tried with small pause between Ctrl-Shift-6 and X but nothing has happened... I tried this with English keyboard.

Thanks anyway.

[Ganesh Hariharan]

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

[Franjo Pongrac]

Hi Ganesh,
The proposed document (link) is exactly the one which I followed when I was configuring.
Thx.
Franjo

[Ganesh Hariharan]

Hi Ganesh, 
The proposed document (link) is exactly the one which I followed when I was configuring. 
Thx. 
Franjo

Hi Franjo,

In order to come back to terminal server from existing session by using ctrl-shift-6-x to bring you back to terminal server.what error it shows when you press this command.

HTH

Ganesh.H

[Franjo Pongrac]

Hi Ganesh
There is no any error. It simply doesn’t react. Like I didn’t type anything… Please check the log file attached. Can you see those blank lines; these are the moments when I typed Ctrl-Shit-6, x sequence.
Thanks for helping me!
Franjo