Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!munnari.oz.au!comp.vuw.ac.nz!massey!GEustace
From: GEustace@massey.ac.nz (Glen Eustace)
Newsgroups: comp.protocols.nfs
Subject: ARP packets via SLIP with PC-NFS
Keywords: ARP, PCNFS, SLIP
Message-ID: <412@massey.ac.nz>
Date: 28 Nov 89 03:55:04 GMT
Organization: Massey University, Palmerston North, New Zealand
Lines: 24
X-Reader: NETNEWS/PC Version 2.1

We have started experimenting with SLIP. We are connecting PCs running
Sun PCNFS v3.0.1 to a Pyramid 9815 running OSx4.4.

We have been having a lot of difficulty getting the PC to talk to
anything else. After resorting to a Datacom Analyser, it would seem that
PCNFS is sending an ARP packet for each host to the Pyramid. Pyramid SLIP
Interface doesn't support ARP, consequently no connections can be made.
It was found that by using the command

	arp -s host 0:0:0:0:0:0

on the PC, we could trick the PC into thinking it already knew the
Ethernet address of the intended host. It didn't matter what address was
specified.

ARP on SLIP seems a bit non sensical anyway?  Is it possible to tell
PCNFS that it shouldn't send the ARP request.  What would it do with the
reply anyway?

--
  Glen Eustace, Software Manager, Computer Centre, Massey University,
   Palmerston North, New Zealand. Phone: +64 63 69099 x7440 GMT+12
             E-Mail via Internet: G.Eustace@massey.ac.nz
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