From owner-freebsd-hackers Fri Apr 9 6:47: 2 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from flood.ping.uio.no (flood.ping.uio.no [129.240.78.31]) by hub.freebsd.org (Postfix) with ESMTP id C880815187 for ; Fri, 9 Apr 1999 06:47:00 -0700 (PDT) (envelope-from des@flood.ping.uio.no) Received: (from des@localhost) by flood.ping.uio.no (8.9.2/8.9.1) id PAA97277; Fri, 9 Apr 1999 15:44:48 +0200 (CEST) (envelope-from des) To: Pavlin Ivanov Radoslavov Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: IGMP membership report not received by mrouted References: <199904090335.UAA23923@hugo.usc.edu> From: Dag-Erling Smorgrav Date: 09 Apr 1999 15:44:47 +0200 In-Reply-To: Pavlin Ivanov Radoslavov's message of "Thu, 08 Apr 1999 20:35:53 -0700" Message-ID: Lines: 15 X-Mailer: Gnus v5.5/Emacs 19.34 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Pavlin Ivanov Radoslavov writes: > If I start mrouted (3.9-beta3+IOS12), mrouted cannot see the IGMP > membership reports. If I start tcpdump on the interface with > receivers, then mrouted can see the IGMP membership reports!! > No other mrouted running on neighbor machines. Starting tcpdump puts the interface in promiscuous mode. It sounds to me like a) the NIC driver is incorrectly discarding multicast packets when not in promiscuous mode, or b) mrouted uses bpf but forgets to put the interface in promiscuous mode. I'm not familiar with mrouted, but my take is that b) is the likeliest scenario. DES -- Dag-Erling Smorgrav - des@flood.ping.uio.no To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message