Path: utzoo!attcan!utgpu!utstat!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!wellflt.UUCP!jfitzger%talcott
From: jfitzger%talcott@wellflt.UUCP (Jeffrey J. Fitzgerald)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Re: ARP+
Message-ID: <8911151511.AA02440@mashnee.Wellfleet.Com>
Date: 15 Nov 89 15:11:02 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 15

> There was 3 or 4 RFC's in the 900's which were on the subject of
> "transparent subnetting" ... one of the ideas there I thought had
> a lot of promise but I don't think is implemented anywhere.  The idea

	We support transparent subnetting (as well as the MTU discovery
option - another recently discussed topic) and in particular, we will
allow multiple subnets to live on the same segment.  Proxy ARP is, of
course, an important part of transparent subnetting as is the ability
to dynamically update your ARP cache by 'peering into' ARP request
packets (of hosts that you have previously resolved).  This allows you
to cable around the gateways using transparent subnetting - or just
to change the mac address of one of the hosts - without booting your
gateways - or taking any administrative action whatsoever.

Jeff