From owner-freebsd-hackers Thu Oct 10 13:11:38 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id NAA12556 for hackers-outgoing; Thu, 10 Oct 1996 13:11:38 -0700 (PDT) Received: from alpha.xerox.com (alpha.Xerox.COM [13.1.64.93]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id NAA12540 for ; Thu, 10 Oct 1996 13:11:23 -0700 (PDT) Received: from crevenia.parc.xerox.com ([13.2.116.11]) by alpha.xerox.com with SMTP id <15242(9)>; Thu, 10 Oct 1996 13:10:45 PDT Received: from localhost ([127.0.0.1]) by crevenia.parc.xerox.com with SMTP id <177476>; Thu, 10 Oct 1996 13:10:26 -0700 X-Mailer: exmh version 1.6.7 5/3/96 To: michael butler cc: julian@whistle.com (Julian Elischer), hackers@freebsd.org Subject: Re: Annoying artifact of the routing code In-reply-to: Your message of "Thu, 10 Oct 1996 01:37:58 PDT." <199610100838.SAA19800@asstdc.scgt.oz.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Thu, 10 Oct 1996 13:10:20 PDT From: Bill Fenner Message-Id: <96Oct10.131026pdt.177476@crevenia.parc.xerox.com> Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk In message <199610100838.SAA19800@asstdc.scgt.oz.au>you write: >... invalidate any >cached arp entries (held by others) for the old address by means of some >broadcast on the ether concerned. Is such an arp packet defined or is it a >'Cisco special' ? If it is a 'standard' mechanism, why don't we use it in >such cases ? We do, if you "tcpdump arp" while changing your address you will notice an arp packet being broadcasted. I think Julian was talking about something more subtle, where packets get sent with an incorrect source address. Bill