From owner-freebsd-net Tue Jun 8 7: 3:34 1999 Delivered-To: freebsd-net@freebsd.org Received: from mathserv.mps.ohio-state.edu (mathserv.mps.ohio-state.edu [128.146.111.31]) by hub.freebsd.org (Postfix) with ESMTP id DB8A814D6A for ; Tue, 8 Jun 1999 07:02:57 -0700 (PDT) (envelope-from alden@math.ohio-state.edu) Received: from zaphod.mps.ohio-state.edu (zaphod.mps.ohio-state.edu [128.146.111.36]) by mathserv.mps.ohio-state.edu (8.9.2/8.9.2) with ESMTP id KAA09257 for ; Tue, 8 Jun 1999 10:02:48 -0400 (EDT) Received: (from alden@localhost) by zaphod.mps.ohio-state.edu (8.9.2/8.9.2) id KAA28931 for freebsd-net@freebsd.org; Tue, 8 Jun 1999 10:02:52 -0400 (EDT) Date: Tue, 8 Jun 1999 10:02:51 -0400 From: Dave Alden To: freebsd-net@freebsd.org Subject: bridging and multicast (in FreeBSD 3.2-RELEASE) Message-ID: <19990608100251.B28732@zaphod.mps.ohio-state.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95.1i Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hi, Has anyone had any trouble (or success for that matter :-) using the builtin bridge(4) with multicast packets? I'm running 3.2-RELEASE. When I run tcpdump on a Sun that is behind the bridge, I get the following (note that both machinea and machineb are on the 'outside' of my bridge): 09:35:24.338648 truncated-ip - 14280 bytes missing!machinea.35468 > 224.2.0.1.43211: udp 28 (ttl 17, id 12534, bad cksum e3ca!) 09:35:24.378846 truncated-ip - 15300 bytes missing!machineb.38860 > 224.2.0.1.43211: udp 32 (ttl 31, id 38687, bad cksum ab27!) tcpdump from the bridge computer: 09:35:24.495187 machinea.35468 > 224.2.0.1.43211: udp 28 (ttl 17, id 63024) 09:35:24.535392 machineb.38860 > 224.2.0.1.43211: udp 32 (ttl 31, id 8087) I've set net.link.ether.bridge=1 and tried setting net.link.ether.bridge_ipfw to both 1 and 0 (I get the same result). My ipfw rule is: 65535 allow ip from any to any Any ideas? ...thnx, ...dave alden To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message