[nos-bbs] nos-bbs Digest, Vol 100, Issue 2

[JJ]

On 11/02/2012 09:00 AM, nos-bbs-request at tapr.org wrote:
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>     1. Trouble connecting to BBS with telnet (Michael Fox - N6MEF)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 1 Nov 2012 10:19:33 -0700
> From: "Michael Fox - N6MEF" <n6mef at mefox.org>
> Subject: [nos-bbs] Trouble connecting to BBS with telnet
> To: "TAPR xNOS Mailing List" <nos-bbs at tapr.org>
> Message-ID: <007f01cdb855$0ffbe5f0$2ff3b1d0$@mefox.org>
> Content-Type: text/plain;	charset="UTF-8"
>
> I'm having trouble connecting to a BBS using Telnet.  Basically, the connection hangs.  I have to reset the session with "tcp reset <session#>".  If allowed to continue to hang, JNOS exists with error code 1.
>
> The following information is below.
>
> -- the instructions I was given
> -- a manual connect from linux and jnos
> -- the JNOS forwarding file entry
> -- a description of the sequence from wireshark
>
> I'm new to this so I'm probably doing something dumb.  Please help.
> (My BBS is n6mef.  Remote is N0ARY.  The IP address and port number of N0ARY have been changed to protect the innocent)
>
> Instructions
> -----------------------------------------
> telnet to 11.22.33.44 port 12345
> at the prompt, enter:   bbs n6mef
>
>
> Manual session:
> ------------------------------------------
> $ telnet 11.22.33.44 12345 Trying 11.22.33.44...
> Connected to 11.22.33.44.
> Escape character is '^]'.
> [tcpd-N0ARY-4.1.1]
> bbs n6mef
> [ARY-4.1.1-H$]
>
> 1) N0ARY [0]>
> bye
> Connection closed by foreign host.
> $
>
> Note:  It works equally well from the jnos> console prompt:
>
> jnos> telnet 11.22.33.44 12345
> Resolving 11.22.33.44... Trying 11.22.33.44:12345...
> Telnet session 1 connected to 11.22.33.44
> [tcpd-N0ARY-4.1.1]
> bbs n6mef
> [ARY-4.1.1-H$]
>                                                                                  
> 1) N0ARY [0]>
> bye
> Telnet session 1 closed: Reset/Refused
> Hit enter to continue
> <EnterKey>
> Jnos>
>
>
>
> My forwarding file entry:
> ---------------------------------
> n0ary
> tcp 11.22.33.44 12345
>   +N0ARY
>   * 10
>   .bbs n6mef
>   +N0ARY
>   * 10
> n0ary
> ------------
>
>
> Wireshark packet trace summary
> ---------------------------------------------
> Running tcpdump/wireshark, I see:
> JNOS sends SYN
> Remote responds SYN ACK
> JNOS sends ACK
> Remote sends [tcpd-N0ARY-4.1.1] followed by hex 0D (carriage return)
> JNOS sends back just an ACK - no data
> Remote sends hex 0A (line feed)
> JNOS sends just an ACK - no data
> All of this happens within about a second.  At that point, the session just hangs - no more packets
>
>
> Can anyone see what's wrong?
>
> Michael
> N6MEF
>
>
>
>
>
>
> ------------------------------
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>
> End of nos-bbs Digest, Vol 100, Issue 2
> ***************************************
>
Try setting "mbox trace on" in jnos and then you can see what it might 
be waiting for?
John
ve1jot