Xref: utzoo comp.protocols.appletalk:973 comp.protocols.tcp-ip:4685
Path: utzoo!attcan!uunet!munnari!otc!metro!basser!wolfen!david
From: david@wolfen.cc.uow.oz (David Wilson)
Newsgroups: comp.protocols.appletalk,comp.protocols.tcp-ip
Subject: TCP/IP via SuperMac CommCard on a Mac II
Keywords: TCP IP Localtalk
Message-ID: <5298@wolfen.cc.uow.oz>
Date: 22 Sep 88 00:05:11 GMT
Organization: Uni of Wollongong, NSW, Australia
Lines: 34

We have the following network in our department:

	===================================================== Ethernet
			|		|		|
		   +--------+	   +--------+	   +--------+
		   | MacII  |	   | KFPS-3 |	   |Sequent |
		   +--------+	   +--------+	   +--------+
			|		|
	--------+-------+-------+-------+-------+------------ Localtalk
		|		|		|
		More macs		   laserwriter

The localtalk for the MacII running A/UX is provided by a SuperMac
CommCard. This allows A/UX users to spool printouts to the laserwriter.
If a mac user on the localtalk network wishes to login to the A/UX
system using telnet he goes via the KFPS-3 onto the ethernet and into
the Mac II.

Question 1:	Has anyone implemented a layer of software that would
		allow the CommCard to appear as though it were an ethernet
		card so that telnets to this machine would not need to
		go out onto the ethernet [and presumably let a MacII
		running A/UX to be networked without an ethernet card].
		This software would encapsulate TCP/IP inside Appletalk
		packets as well as allowing utilities such as ifconfig to
		be used.

Question 2:	If such a layer of software were written, would it then be
		possible for a MAC II with both interfaces to replace the
		KFPS altogether, performing routing between the Localtalk
		and ethernet networks?

David Wilson	Department of Computing Science, University of Wollongong
		david@uowcsa.cs.uow.oz.au