Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!pasteur!ucbvax!UM.CC.UMICH.EDU!Doug_Nelson
From: Doug_Nelson@UM.CC.UMICH.EDU
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Subnetting
Message-ID: <3030368@um.cc.umich.edu>
Date: 9 May 88 16:32:08 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 12

As a couple of you have pointed out, routing is the problem with
multiple subnets of different sizes.  We manage routing within our
subnet very trivially - we don't really do routing, since we have
only a single gateway to the outside world.  I encourage our Sun
owners to add a default route pointing to their own system, which
adds a few ARPs to our local network, but finds the gateway just fine.
 
What really is needed is a subnet routing protocol which passes netmasks
along with the network numbers.  Is anyone working on this yet?  Can
anyone tell me if 4.3bsd includes the netmask in each routing table
entry?  We need this to make such a protocol usable.
 
Doug Nelson