From owner-freebsd-hackers Tue Jun 25 08:46:10 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id IAA10171 for hackers-outgoing; Tue, 25 Jun 1996 08:46:10 -0700 (PDT) Received: from brasil.moneng.mei.com (brasil.moneng.mei.com [151.186.109.160]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id IAA10163 for ; Tue, 25 Jun 1996 08:46:06 -0700 (PDT) Received: (from jgreco@localhost) by brasil.moneng.mei.com (8.7.Beta.1/8.7.Beta.1) id KAA07793; Tue, 25 Jun 1996 10:44:53 -0500 From: Joe Greco Message-Id: <199606251544.KAA07793@brasil.moneng.mei.com> Subject: Re: Multiple delivery of UDP and IP aliases To: jcl@pavilion.co.uk (Jonathan Laventhol) Date: Tue, 25 Jun 1996 10:44:53 -0500 (CDT) Cc: hackers@freebsd.org In-Reply-To: <199606251517.QAA13345@deputy.pavilion.co.uk> from "Jonathan Laventhol" at Jun 25, 96 04:17:15 pm X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > I'm getting multiple delivery of UDP packets under particular > circumstances to do with SO_REUSEADDR and aliases on interfaces. > Briefly, a packet sent to an alias is getting delivered twice, > to different sockets, whereas the packet to the main address > only gets delivered once. This is a real problem to do with > named serving on alias ip addresses, but I've got test code if > anyone wants to play with it. It's a Legitimate Bug in 2.1R and 2.0.5R (at least), and somebody devised a patch. Check the -hackers list, and if you cannot locate the patch, write to me and I will dredge it up. My apologies to whoever fixed it, I can't remember anymore :-( ... Joe ------------------------------------------------------------------------------- Joe Greco - Systems Administrator jgreco@ns.sol.net Solaria Public Access UNIX - Milwaukee, WI 414/546-7968