cisco 2611 reverse telnet to Redback 800 router -doesn't work !

From: Ling Yi (lingyi10@gmail.com)
Date: Wed Oct 17 2007 - 00:58:54 ART


hi all,

I am trying to have the terminal server (cisco 2611) using octopus asyn
cable to connect to the Redback router.

2600 (Asyn cable, Rj45) ---> DB9 male connector ---> (DB9 female
socket)Redback router

after config the 2611, its not working, just says open (reverser telnet
session just hangs there), on the same octopus cable we also have
connect to another cisco switch, and its working. I have trid all type of
combination of the DB9 connector, still the same. but with one of the Db9
connector (Tx to Rx), then connect the cisco console cable to my laptop, its
works (I can see the redback prompt). so don't think its the Db9 connector
issue.

below is the config and telnet result, just wondering if anyone did this
before, can you please have a look and see if I did anything incorrect ?

==========
router_2611#
interface Loopback0
 ip address 192.168.10.1 255.255.255.0

ip host cisco_switch 2034 192.168.10.1
ip host redback_router 2033 192.168.10.1

line 33 34
 session-timeout 20
 exec-timeout 0 0
 no exec
 length 68
 transport input all
 stopbits 1

router_2611#sh host
Default domain is not set
Name/address lookup uses static mappings

Codes: UN - unknown, EX - expired, OK - OK, ?? - revalidate
       temp - temporary, perm - permanent
       NA - Not Applicable None - Not defined

Host Port Flags Age Type Address(es)
cisco_switch 2034 (perm, OK) 0 IP 192.168.10.1
redback_router 2033 (perm, OK) 0 IP 192.168.10.1
router_2611#
router_2611#sh line
   Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns
Int
     0 CTY - - - - - 0 0 0/0
-
I 1 TTY 115200/115200- inout - - - 0 4 0/0
-
I 33 TTY 9600/9600 - - - - - 3 0 0/0
-
    34 TTY 9600/9600 - - - - - 5 2 0/0
-
    35 TTY 9600/9600 - - - - - 1 2 0/0
-
    36 TTY 9600/9600 - - - - - 0 0 0/0
-
    37 TTY 9600/9600 - - - - - 0 0 0/0
-

router_2611#sh ver

System returned to ROM by power-on
System image file is "flash:c2600-ik9s-mz.123-23.bin"

cisco 2611XM (MPC860P) processor (revision 0x300) with 126976K/4096K bytes
of memory.

router_2611#cisco_switch

Trying cisco_switch (218.214.225.200, 2034)... Open

*******************************************************************

             UNAUTHORISED ACCESS PROHIBITED.
           ALL ACCESSES AND COMMANDS ARE LOGGED.

WARNING: It is a criminal offence to:
          1. Obtain access to data without authority
            (penalty 2 years imprisonment)
          2. Damage, delete, alter or insert data without authority
            (penalty 10 years imprisonment)

*******************************************************************

User Access Verification

Username: tuser
Password:

cisco_switch # *>>> works fine ! >>>*
cisco_switch #
router_2611#disconnect
Closing connection to cisco_switch [confirm]

router_2611#redback_router

Trying redback_router (218.214.225.200, 2033)... Open

*******************************************************************

             UNAUTHORISED ACCESS PROHIBITED.
           ALL ACCESSES AND COMMANDS ARE LOGGED.

WARNING: It is a criminal offence to:
          1. Obtain access to data without authority
            (penalty 2 years imprisonment)
          2. Damage, delete, alter or insert data without authority
            (penalty 10 years imprisonment)

*******************************************************************
* >>>>>> its hangs there ! >>>>>>>>*

router_2611#sh line 33
   Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns
Int
I 33 TTY 9600/9600 - - - - - 4 0 0/0
-

Line 33, Location: "", Type: ""
Length: 68 lines, Width: 80 columns
Baud rate (TX/RX) is 9600/9600, no parity, 1 stopbits, 8 databits
Status: Ready
Capabilities: EXEC Suppressed, Line usable as async interface
Modem state: Ready
Modem hardware state: noCTS noDSR DTR RTS
Special Chars: Escape Hold Stop Start Disconnect Activation
                ^^x none - - none
Timeouts: Idle EXEC Idle Session Modem Answer Session Dispatch
                never 00:20:00 none not set
                            Idle Session Disconnect Warning
                              never
                            Login-sequence User Response
                             00:00:30
                            Autoselect Initial Wait
                              not set
Modem type is unknown.
Session limit is not set.
Time since activation: never
Editing is enabled.
History is enabled, history size is 20.
DNS resolution in show commands is enabled
Full user help is disabled
Allowed input transports are pad v120 telnet rlogin udptn ssh.
Allowed output transports are pad v120 telnet rlogin ssh.
Preferred transport is telnet.
No output characters are padded
No special data dispatching characters
**

*router_2611*#sh line 34
   Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns
Int
    34 TTY 9600/9600 - - - - - 6 2 0/0
-

Line 34, Location: "", Type: ""
Length: 68 lines, Width: 80 columns
Baud rate (TX/RX) is 9600/9600, no parity, 1 stopbits, 8 databits
Status: Ready
Capabilities: EXEC Suppressed
Modem state: Ready
Modem hardware state: CTS* noDSR DTR RTS
Special Chars: Escape Hold Stop Start Disconnect Activation
                ^^x none - - none
Timeouts: Idle EXEC Idle Session Modem Answer Session Dispatch
                never 00:20:00 none not set
                            Idle Session Disconnect Warning
                              never
                            Login-sequence User Response
                             00:00:30
                            Autoselect Initial Wait
                              not set
Modem type is unknown.
Session limit is not set.
Time since activation: never
Editing is enabled.
History is enabled, history size is 20.
DNS resolution in show commands is enabled
Full user help is disabled
Allowed input transports are pad v120 telnet rlogin udptn ssh.
Allowed output transports are pad v120 telnet rlogin ssh.
Preferred transport is telnet.
No output characters are padded
No special data dispatching characters



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