Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!uunet!mcsun!ukc!icdoc!qmw-cs!liam From: liam@cs.qmw.ac.uk (William Roberts;) Newsgroups: comp.protocols.appletalk Subject: Re: A/UX 2.0 as a LocalTalk <-> Ethernet bridge? Keywords: software solution? Message-ID: <3071@redstar.cs.qmw.ac.uk> Date: 30 Apr 91 13:26:43 GMT References: Sender: usenet@cs.qmw.ac.uk Lines: 38 Nntp-Posting-Host: whitesand.dcs.qmw.ac.uk In sven@helix.cshl.org (Sven Dietrich) writes: > Is is possible to use the IIfx as a gateway to the Internet (the IIfx >presumably would be hooked up) if the other Macs on the Appletalk network >use NCSA Telnet (encapsulated IP packets)? That is: could the other Macs >telnet/ftp to Internet sites using some kind of software running in the >background on A/UX?{}.' > Is there any such program? Commercial? Non-commercial? How difficult >would it be to implement, if possible? No, there is currently no software to do this. Apple might have forseen this as functionality which would help sell A/UX CPUs to existing Mac sites, but they didn't do anything about it. In principle it should be straightforward: the steps are: 1) Hook into the AppleTalk streams modules so that the DDP packets which contain IP packets (this is one of the type codes) are routed to a mixture of a streams module and a conventional "interface". 2) Write the interface code which transmits "raw" IP packets as DDP packets and which takes the contents of the IP-IN-DDP packets and passes them up into normal IP. 3) Write some additional code to handle the IPGATEWAY functionality (if you can find documentation on what is actually required). Don't expect Apple to do this: they've so far shown no signs of doing anything except AppleTalk protocols, e.g. the Apple Internet Router (which doesn't work under A/UXC and is only for Apple networking anyway) and A/UX gettys which use ADSP (rumoured - I've not seen such a thing, nor would I want one). -- William Roberts Internet: liam@dcs.qmw.ac.uk Queen Mary & Westfield College UUCP: liam@qmw-dcs.UUCP Mile End Road AppleLink: UK0087 LONDON, E1 4NS, UK Tel: +44 71-975 5234 (Fax: +44 81-980 6533)