Path: utzoo!utgpu!watserv1!watmath!att!occrsh!uokmax!apple!usc!ucsd!ucbvax!NUSVM.BITNET!CCECL
From: CCECL@NUSVM.BITNET ("L. Chandra")
Newsgroups: comp.protocols.tcp-ip.ibmpc
Subject: Re:  Two TCP/IP stacks on one PC
Message-ID: <9006031222.aa09449@louie.udel.edu>
Date: 3 Jun 90 17:06:42 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 16
X-Unparsable-Date: Sun, 03 Jun 90 23:58:48 SST

>Let me explain why I asked.  We are heavy users of 3+Share
>and expect to migrate to 3+Open LAN Manager.  I would love
>to be able to run 3+Open over TCP/IP and do away with XNS.
>However, 3+Open TCP is functionally deficient.  We would
>rather use PC/TCP.  As long as 3+Open uses XNS all should be
>well.  But will PC/TCP coexist with 3+Open running TCP/IP?
>I'm interested in the answer for both DOS and OS/2.

PC/TCP works with 3+Open running NBP or XNS NetBios, but not with 3+Open
running NetBios over TCP/IP. Does anybody knows why? It seems to me that
the TCP/IP stacks which is loaded first would get all the packets, and the
other gets none (I am not sure, I am just guessing). One possible solution
is to run the redirector (and Lan Manager) over PC/TCP's NetBios, forget about
3+Open's TCP all together. But I have not tried this. Incidentally, does
PC/TCP supports expanded/extended memory? For DOS with 640k limit, this is
a very desirable feature.