Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!rice!sun-spots-request
From: honman%lccr.sfu.cdn@relay.ubc.ca (Hon-Man Wong)
Newsgroups: comp.sys.sun
Subject: routing between subnets?
Message-ID: <189*honman@lccr.sfu.cdn>
Date: 19 Feb 89 05:09:22 GMT
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Organization: Sun-Spots
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Approved: Sun-Spots@rice.edu
Original-Date: 3 Feb 89 17:44 -0800
X-Sun-Spots-Digest: Volume 7, Issue 161, message 4 of 16

We have a class B internet address and want to use 10 bits for subnets and
6 bits for host addresses (for reason too complicated to explain here).
We set our subnet mask to 0xffffffc0 under SUN-OS4.0.  However, when we
added the route using e.g

	/usr/etc/route add 128.189.62.64 128.189.62.2 1

the routing table indicated that the route is to the specific host rather
than to the subnet.  Host 128.189.62.2 can't send to host 128.189.62.65,
which I thought is on the same subnet as 128.189.62.64.  Am I doing
something wrong?

BTW, is it possible, under SUN-OS4.0, to have different subnet masks on 2
different ethernet interfaces on the same host?  I.e. Can I use 0xffff0000
on ie0 and 0xffffffc0 on ie1?

Hon-Man Wong
School of Computing Science
Simon Fraser University
Burnaby, B.C.
Canada V5A 1S6

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