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From: amanda@intercon.uu.net (Amanda Walker)
Newsgroups: comp.protocols.appletalk
Subject: Re: Macintosh Internetworking, MacTCP, A.I.Router, etc.
Message-ID: <1443@intercon.UUCP>
Date: 11 Sep 89 15:18:24 GMT
References: <3325@zeus.unl.edu>
Sender: news@intercon.UUCP
Reply-To: amanda@intercon.uu.net (Amanda Walker)
Organization: InterCon Systems Corporation
Lines: 25

In article <3325@zeus.unl.edu>, unocc07@zeus.unl.edu (Dave Caplinger) writes:
> Now we move to MacTCP:
> 
> Apparently, MacTCP is just a CDEV that runs on every Mac to stuff TCP/IP
> packets into AppleTalk packets, and then send them out over some AppleTalk
> medium, be it LocalTalk or Ethernet wiring.  Various things that I'd
> really like to be able to do, like BOOTP and FTP are mentioned in the
> manual, but everything seems to depend on some mystical "DDP-IP gateway". 
> [...]
>
> -/ Dave Caplinger /---------------------------------------------------------
>  Microcomputer Specialist,   Campus Computing,   Univ. of Nebraska at Omaha
>  mspecial@zeus.unl.edu       ...!uunet!unocss!dent          MSPECIAL@UNOMA1

If you are running MacTCP over LocalTalk, it encapsulates IP packets in
DDP packets.  This makes it compatible with LocalTalk/Ethernet gateways
such as the Kinetics FastPath, Cayman GatorBox, and so on.

If you are running MacTCP directly over Ethernet, it uses standard
IP-over-Ethernet packets, thus looking like any other TCP/IP host on
the Ethernet.  No gateway is needed.

--
Amanda Walker
amanda@intercon.uu.net    |    ...!uunet!intercon!amanda