It looks like the lines are configured with two stop bits instead of one:
no parity, 2 stopbits, 8 databits
Proper settings are 9600, 8, N, 1
8 databits, no parity, 1 stopbit
So unless your connecting to something that makes use of two stopbits this
could very well be your problem.
-- Kevin
----- Original Message -----
From: "perryb" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, April 05, 2001 2:02 PM
Subject: 2511 Reverse Telnet Problems - Long
> Hello,
>
> I'm still having 2511 terminal server reverse telnet problems. This may
be
> a little long, but I want to provide all the details. Before I ramble on,
> is there any way to verify that the 2511 line interface hardware is not
> broken ? I've swapped out my octal cable and I've changed the ios
version.
> So here goes...
>
> Here are the 2511 pertinent command lines:
>
> interface Loopback0
> ip address 1.1.1.10 255.255.255.255
> line 1 16
> no exec
> transport input all
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> Here are the router (2501) lines that I'm trying to successfully rev
telnet
> to (console port):
>
> interface Loopback0
> ip address 1.1.1.1 255.255.255.255
> line con 0
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> Here is the "sho line" of the 2511 before attempting the rev telnet:
>
> Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns
Int
> 0 CTY - - - - - 2
> 0 0/0 -
> 1 TTY 9600/9600 - - - - - 12 1
> 0/0 -
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> Here is the "sho line 1" of the 2511 before attempting rev telnet:
>
> Line 1, Location: "", Type: ""
> Length: 24 lines, Width: 80 columns
> Baud rate (TX/RX) is 9600/9600, no parity, 2 stopbits, 8 databits
> Status: Ready
> Capabilities: none
> 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
> 00:10:00 never 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 10.
> DNS resolution in show commands is enabled
> Full user help is disabled
> Allowed transports are pad v120 telnet rlogin. Preferred is telnet.
> No output characters are padded
> No special data dispatching characters
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> Here is the sho line of the 2501 before rev telnet:
>
> Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns
Int
> 0 CTY - - - - - 0
> 0 0/0 -
> 1 AUX 9600/9600 - - - - - 0 0
> 0/0 -
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> This is my rev telnet execution with debug out put from the console of the
> 2511
>
> TermServ#tel 1.1.1.10 2001 /debug
> Trying 1.1.1.10, 2001 ... Open
>
> [TN: received WILL ECHO (1)]
> [TN: sent DO ECHO (1)]
> [TN: received WILL SUPPRESS-GA (3)]
> [TN: sent DO SUPPRESS-GA (3)]
> [TN: received DO TTY-TYPE (24)]
> [TN: sent WILL TTY-TYPE (24)]
> [TN: received DO WINDOW-SIZE (31)]
> [TN: sent WILL WINDOW-SIZE (31)]
> [TN: Sent SB NAWS 100 36]
> [TN: recv SB 24 1 ]
> [TN: Sent SB 24 0 vt100]
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> At this point, the terminal freezes and no characters echo to the
terminal -
> basically, it's frozen. I then do a ctrl+shift+6+x to break out and have
a
> look at things...this is what I see:
>
> Output of "sho line 1" on 2511:
>
> Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns
> Int
> * 1 TTY 9600/9600 - - - - - 13 1
> 0 -
>
> Line 1, Location: "", Type: "vt100"
> Length: 36 lines, Width: 100 columns
> Baud rate (TX/RX) is 9600/9600, no parity, 2 stopbits, 8 databits
> Status: Ready, Connected, Active
> Capabilities: none
> Modem state: Ready
> Modem hardware state: CTS* DSR* DTR RTS
> Special Chars: Escape Hold Stop Start Disconnect Activation
> ^^x none - - none
> Timeouts: Idle EXEC Idle Session Modem Answer Session
Dispatch
> 00:10:00 never 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: 00:02:30
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> Output of "sho user" on 2511:
>
> Line User Host(s) Idle Location
> * 0 con 0 1.1.1.10 00:00:02
> 1 tty 1 idle 00:00:06 1.1.1.10
> * 18 vty 0 idle 00:00:26 192.168.0.30
>
> Interface User Mode Idle Peer Address
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> Output of "sho session" on 2511:
>
> Conn Host Address Byte
Idle
> Conn Name
> * 1 1.1.1.10 1.1.1.10 0
> 2 1.1.1.10
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> A "sho line," "sho line 1," and "sho session" on the 2501 is unchanged
from
> the original before the rev attempt.
>
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>
> I've also connected a modem to do a stnadard rev telnet and acces the at
> command set. I set the 2511 lines to autobaud to see if it was actually
> communicating with the modem and sure enough, the modem negogiated and set
> the 2511 lines from 9600 to 19200. However, I get the same indications,
the
> session "freezes" and I can't access the at command set.
>
> This problem is driving me crazy. I'm a little concerned that I have a
> defective 2511 (bought via e-bay auction), but I don't know for isloate
that
> with certainty. Also, please be advised that I have scoured the archives,
> CCO, and made recommended configs from others on this list, but with no
> success.
>
> Sorry for the long post, but you definetliy have all the info - need help.
>
> thanks
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