Problem with TN3270 with SSL and PCOMM

[Ulrich Boche]

We're having a problem with some connections to a secure server port on a
TN3270 server under z/OS V1.6.
I'll show and then comment on the Telnet debug messages we're seeing.

06.52.56 STC13078 EZZ6034I TELNET CONN 0110B508 LU **N/A** ACCEPTED
23023 139
139 IP..PORT: xxx.xx.6.214..1177

06.55.11 STC13078 EZZ6035I TELNET DEBUG DETAIL CLIENT 218

218 IP..PORT: xxx.xx.6.214..1177

218 CONN: 0110B508 LU: MOD: EZBTTRCV

218 RCODE: 1001-00 Client disconnected from the
connection.
218 PARM1: 000001B5 PARM2: 00000000 PARM3: 00000000

06.55.11 STC13078 EZZ6034I TELNET CONN 0110B508 LU **N/A** CONN DROP
CLNTDISC
219 IP..PORT: xxx.xx.6.214..1177

There a no error messages at the client, the emulator window stays dark. A
retry of the connection will typically get the session established.

It is interesting that the vast majority of the TN3270 SSL users are using
Attachmate Extreme V.8 and they haven't seen this problem to this date
(fortunately). Only a chosen few in sysprog have IBM Personal
Communications V.5.8 Patch level 20050418 and only these users see the
disconnect problem.

Any idea why this is happening under PCOMM? The server, of course, sees
this condition as a normal client disconnect without any error condition.
What puzzles me is the "LU **N/A**"; is this an indication of a problem?
--
Ulrich Boche
SVA GmbH
Premier IBM Business-Partner

----------------------------------------------------------------------
For IBMTCP-L subscribe / signoff / archive access instructions,
send email to LIST...@VM.MARIST.EDU with the message: INFO IBMTCP-L

[Ulrich Boche]

-----IBM TCP/IP List <IBMT...@VM.MARIST.EDU> wrote: -----

>To: IBMT...@VM.MARIST.EDU
>From: Alan Altmark <Alan_A...@us.ibm.com>
>Sent by: IBM TCP/IP List <IBMT...@VM.MARIST.EDU>
>Date: 18.07.2006 20:22
>Subject: Re: [IBMTCP-L] Problem with TN3270 with SSL and PCOMM
>PCOMM has a very nice tracing facility. Look under "Administrative
>and PD
>Aids" in the PCOMM folder. That will give you some idea of what
>PCOMM is
>doing and maybe even answer "why?".
>
The trace facility looks good, I'm sure it will help with our problem. What
is puzzling me is that all the list items in the trace window are in some
strange language, Czech or Hungarian or such, I can barely make out what
entries I need to select. Setting the language in the configuration options
doesn't help. I activated the option to ask for the language before
starting each application, but the only application that comes up without
the selection window is TRACE.