Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!ux1.cso.uiuc.edu!ux1.cso.uiuc.edu!uxh.cso.uiuc.edu!carlson
From: carlson@uxh.cso.uiuc.edu
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Duplicate ping packets on a local a
Message-ID: <16300009@uxh.cso.uiuc.edu>
Date: 22 Nov 89 22:04:00 GMT
References: <32737@ucbvax.BERKELEY.EDU>
Lines: 10
Nf-ID: #R:ucbvax.BERKELEY.EDU:32737:uxh.cso.uiuc.edu:16300009:000:499
Nf-From: uxh.cso.uiuc.edu!carlson    Nov 22 16:04:00 1989


It is not the hosts' protocols.
Ping doesn't use TCP, and IP/ICMP should never rebroadcast.
Thus the problem must be below the IP level. How intelligent 
are the Ether/uWave interfaces?  Maybe they are too clever for
their good.  Have you tried putting a netwatcher/packet sniffer
on each end?  Are ARP packets also being duplicated?
--------------------
Brad Carlson  <carlson@mrcnext.cso.uiuc.edu> or <brad-carlson@uiuc.edu>
University of Illinois -- Consultant -- NeXT guru -- Windows Programmer