Date: 09 Apr 1999 15:44:47 +0200 From: Dag-Erling Smorgrav <des@flood.ping.uio.no> To: Pavlin Ivanov Radoslavov <pavlin@catarina.usc.edu> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: IGMP membership report not received by mrouted Message-ID: <xzplng1oqls.fsf@flood.ping.uio.no> In-Reply-To: Pavlin Ivanov Radoslavov's message of "Thu, 08 Apr 1999 20:35:53 -0700" References: <199904090335.UAA23923@hugo.usc.edu>
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Pavlin Ivanov Radoslavov <pavlin@catarina.usc.edu> 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
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