Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!think.com!mintaka!bloom-beacon!eru!hagbard!sunic!mcsun!cernvax!chx400!urz.unibas.ch!doelz
From: doelz@urz.unibas.ch
Newsgroups: comp.sys.dec
Subject: Re: DECNET MAC address use query
Message-ID: <1990Nov9.080606.1162@urz.unibas.ch>
Date: 9 Nov 90 07:06:06 GMT
References: <1990Nov8.125106.18326@gdr.bath.ac.uk>
Organization: University of Basel, Switzerland
Lines: 24

In article <1990Nov8.125106.18326@gdr.bath.ac.uk>, exspes@gdr.bath.ac.uk (P E Smee) writes:
> 
> We have a question regarding DECNET use of MAC addresses, which has
> become important as we are rewiring ourself into a bunch of local
> ethers interconnected by clever managed bridges.  We can't determine
> the answer experimentally, as we are not running DECNET at the moment,
> but we do anticipate local use of it in the near future.
> 

My mac is running TSSnet Ver 2.0 and it reassigns the node address to 
the ethernet card - becoming the typical aa:... :node:area type. I am 
not aware of and I don't think it is permitted in the Ethernet spec 
to have more than one machine with the same enet address. Its something
else with gateways. At the days where it was still kinetics Fast Path 4, 
we had one on testing which was permitting decnet tunneling on local talk. 
This box had one address, and the macs on the *local talk* cable could share 
it. This is something completely else than the ethernet, and local talk 
protocols take the part of addressing - its encapsulated. 

The LANworks might work differently. We ordered it long ago and are still 
waiting for delivery... 

Regards 
Reinhard