Xref: utzoo comp.protocols.tcp-ip:7456 comp.protocols.tcp-ip.ibmpc:1405 comp.protocols.pcnet:1
Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!sun-barr!cs.utexas.edu!csd4.milw.wisc.edu!uxc.cso.uiuc.edu!tank!eecae!netnews.upenn.edu!scotty.dccs.upenn.edu!tony
From: tony@scotty.dccs.upenn.edu (Anthony Olejnik)
Newsgroups: comp.protocols.tcp-ip,comp.protocols.tcp-ip.ibmpc,comp.protocols.pcnet
Subject: PCLAN/NetBIOS/TCP problem
Message-ID: <12199@netnews.upenn.edu>
Date: 19 Jun 89 21:16:56 GMT
Sender: news@netnews.upenn.edu
Reply-To: tony@scotty.dccs.upenn.edu (Anthony Olejnik)
Organization: University of Pennsylvania
Lines: 37


I'm having a problem with IBM's PCLAN program.  The problem appears
with both versions 1.2 and 1.3 (I don't know about earlier versions).

I've noticed that when using either Ungermann-Bass PCNIUs (with Release
16.0 of their TCP/PC software) or WD8003E's (with PC/TCP v2.03 pl 1
software) the PCLAN server does not drop non-existent sessions.

Both of the HW/SW combinations are using the NetBIOS as referenced in
RFC's 1001 & 1002.

Clients who connect to the server are still "seen" by the server even
after the PC is turned off.  This presents a problem the next day when
the same clients attempt to connect to the server again.  If the server
has available NETBIOS/TCP sessions, then the client is able to re-connect.
However, this still leaves a non-existent session on the server end.
If the server does not have any available NETBIOS/TCP sessions, then the
client is not able to re-connect.

Is this a problem with PCLAN?
Is this a problem with my configuration of PCLAN?
   (I start the server via the following command: net start srv test /cac:0)
Is this a problem with both UB and FTP's software?
Is this a (RFC 1001/2) NetBIOS bug? 

Any help would be greatly appreciated.

Thanks.

--tony olejnik
  University of Pennsylvania
  Data Communications and Computing Services
  Suite 221A
  3401 Walnut Street
  Philadelphia, PA 19104
  (215) 898-9408
  tony@dccs.upenn.edu