[comp.protocols.appletalk] A/UX 2.0 : ATP1 driver available?

bschmidt@bnr.ca (Ben Schmidt (BNR)) (02/16/91)

Apologies for 2nd posting, probs with my  nntp client..
Is it possible to get an A/UX  2.0 machine generating ATP1 protocols 
instead of ATP2?  many thx, 

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

liam@cs.qmw.ac.uk (William Roberts;) (02/20/91)

In <1991Feb15.164716.19093@bwdls61.bnr.ca> bschmidt@bnr.ca (Ben Schmidt (BNR)) 
writes:

>Is it possible to get an A/UX  2.0 machine generating ATP1 protocols 
>instead of ATP2?  many thx, 

In principle you would need a variation on the kernel "elap" which looked like 
existing kernel "alap" module, but which constructs EtherTalk phase 1 packets.

The first snag is that unless you licence the Portable AppleTalk source code 
then there doesn't seem to be any documentation on the various interfaces, so 
you don't know what "being like alap" involves.

The second snag is more serious: the ethernet drivers don't have any magic for 
dealing with 0x809b ethernet packet types (let alone the Apple version of ARP).
This is short-sighted, but Apple inherited the shortsightedness from BSD 4.3 
when they picked up the networking implementation.

The final snag is that Apple undoubtedly don't want to bring out new support 
for phase 1, so they probably won't put themselves out to make it happen. If 
you want to develop the necessary product because you think there is a market 
then they won't stand in your way, but they aren't going to do it.

Bottom Line: No, forget ATP1 under A/UX 2.0
--

William Roberts                 ARPA: liam@cs.qmw.ac.uk
Queen Mary & Westfield College  UUCP: liam@qmw-cs.UUCP
Mile End Road                   AppleLink: UK0087
LONDON, E1 4NS, UK              Tel:  071-975 5250 (Fax: 081-980 6533)