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From: bschmidt@bnr.ca (Ben Schmidt)
Newsgroups: comp.protocols.appletalk
Subject: Re: Mac Access to TCP/IP
Message-ID: <1990Oct15.135554.17690@bnrgate.bnr.ca>
Date: 15 Oct 90 13:55:54 GMT
Sender: news@bnrgate.bnr.ca (USENET News System)
Distribution: comp
Organization: Bell-Northern Research
Lines: 64
References:<691@axiom.maths.uq.oz> <1968.2719b242@waikato.ac.nz>

In article <1968.2719b242@waikato.ac.nz> hamish@waikato.ac.nz writes:
> In article <691@axiom.maths.uq.oz>, jay@axiom.maths.uq.oz.au (Joseph Young) writes:
> > I'm faced with the following configuration:
> > 
> >           +-----+                                                +-----+
> >           ! Mac !                                                ! IBM !
> >           +--+--+                                                ! PCs !
> >              !                +--------+                         +--+--+
> >    Novell Trunk - LocalTalk   ! Novell !  Novell Trunk - Ethernet   !
> > -------------+----------------+ File   +----------+-----------------+--->
> >                               ! Server !          !
> >                               +--------+          !
> >                              (NetWare 2.15)    +--+---+
> >                                                !Bridge!(Brand: Wellfleet) 
> >                                                !Router!
> >                                                +--+---+
> >                      Ethernet to remote hosts     !  (TCP/IP)
> >            ---------------------------------------+-----------------------
> > 
> > Question: How can I get the Macintoshes on the Novell LocalTalk trunk talking
> >           to the remote hosts on the Ethernet running TCP/IP. The type of
> >           services I'm interested in are Telnet, FTP and mail.
> > 
> > Any help would be greatly appreciated .. I'm fairly new at this type of thing.
> > 
> > Joe Young
> > 
> > jay@axiom.maths.uq.oz.au
> 
> I've seen several solutions, but all the ones I have seen are a hardware box
> that translates ethernet into Appletalk. Products are such things as Fastpath
> and GatorBox? We use Fastpaths here, (not sure whether thats a brand or model).
> 
> |  Hamish Marson                        |  Internet  hamish@waikato.ac.nz    

Joe, I've never used Novell's NetWare for the Mac but I know what you
have to ask your Novell sales rep for, if that's any help.(?) 

Any of the PD and most of the commercial Mac IP applications are based
on encapsulating IP into LocalTalk DDP packets.  (For a quick
description, anonymously FTP to apple.com and look in the
"/pub/apple-ip" directory for the "IP_in_AppleTalk" documents.)

Therefore if you want IP_in_Appletalk packets from these Mac IP
applications to pass thru your Netware server's LocalTalk port and
then appear as IP packets coming out of your Netware server's Ethernet
port, you'll have to ask Novell if there's a Netware module to perform
a DDP/IP gateway function.  Apple uses this "DDP/IP gateway" term to
describe any LocalTalk-to-Ethernet box which recognizes IP_in_AppleTalk
and extracts the IP and places it within a standard Ethernet version
2, type 0800 packet for other IP nodes to read.  

There are lots of boxes out there that are advertised to have this
DDP/IP function: Shiva FastPath, Cayman GatorBox, Webster Multigate,
various NRC software and hardware versions, Ungermann-Bass MaxTalk, to name
but a few.  But I doubt you want to buy still more hardware. Since the
engineers and computer scientists who worked on the Novell/Kinetics
FastPath didn't transfer to Shiva, Novell certainly has the knowledge
in-house to provide a Novell DDP/IP gateway function if they don't
already provide one within netware 2.15 or an add-on module.

Ben Schmidt              Bell-Northern Research, Ltd.    Ph: (613) 763-3906
Information Technology   P.O. Box 3511, Station C        FAX:(613) 763-3283
bschmidt@bnr.ca          Ottawa Canada K1Y 4H7