Xref: utzoo comp.dcom.lans:955 comp.protocols.tcp-ip.ibmpc:277 comp.sys.ibm.pc:10826
Path: utzoo!utgpu!water!watmath!clyde!rutgers!husc6!uwvax!umn-d-ub!umn-cs!amit
From: amit@umn-cs.cs.umn.edu (Neta Amit)
Newsgroups: comp.dcom.lans,comp.protocols.tcp-ip.ibmpc,comp.sys.ibm.pc
Subject: Re: TCP/Novell gateway (actually: IP/NetBios gateway)
Message-ID: <3695@umn-cs.cs.umn.edu>
Date: 25 Jan 88 23:07:04 GMT
References: <5148X@utah-cs.UUCP>
Reply-To: amit@umn-cs.UUCP (Neta Amit)
Organization: University of Minnesota
Lines: 43
Posted: Mon Jan 25 17:07:04 1988

> We are very interested in gatewaying our Novell PC networks to a 
> TCP/IP Ethernet. 
>  
> One unique approach to this problem would be using a PC as a 
> level-3 gateway between the Novell IPX net and the IP Ethernet.  
> Client programs (such as NCSA telnet, Phil Karn's NET package, X 
> windows programs, etc.) would be modified to encapsulate the IP 
> packets in IPX packets.  The gateway would catch the IPX packets 
> from the clients, strip the IPX headers, and send them out over 
> the Ethernet. 
> 

Speaking of which: we've been engaged in a similar project to gateway
between a IBM PC-LAN network (in fact: any NetBIOS-based LAN) and the
Internet. One of the PC's serves as a gateway, and contains cards for
both networks. The rest are connected just to the PC-LAN. 

The first version supported Mail services, and was implemented
by mapping SMTP to the PC-LAN equivalent. It has been operational
for about a year. In the second version, currently under construction,
IP packets are encapsulated by the local packets. SMTP, FTP and
Telnet will be supported.

Our goal is to build a full-service facility, including most servers.
For example, the Mail server and client are not dependent on external
facilities (hosts, protocols); the mail server is (almost) running as
a TSR, along with PC-LAN Program and DOS. 

Like many others, we base our code on MIT's/CMU's Pcip package -- with
substantial mods. Two questions to Netlanders:
- where can we find pcip-FTP sources? Our outdated version doesn't
  include it.
- 3Com's Etherlink card is expensive and slow -- but supported by pcip.
  We'd like to hear about availability of drivers for more modern cards,
  particulary WD. Alternatively, we're thinking about modifying one of the
  existing public domain drivers. It doesn't look too bad; is it ?

TIA,
	
-- 
  Neta Amit 
  U of Minnesota CSci
  Arpanet: amit@umn-cs.cs.umn.edu