Date: Mon, 10 Nov 2003 07:38:22 +0000 From: Bruce M Simpson <bms@spc.org> To: freebsd-net@freebsd.org Subject: Viewing multicast group membership? Message-ID: <20031110073822.GA20611@saboteur.dek.spc.org>
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Hi, Pardon me if this is an FAQ or answered somewhere else. I've had a quick skim through the man pages and the source, and can't seem to find a means of listing which IPv4 multicast groups a host is currently a member of. The net.igmp.stats sysctl only seems to maintain general protocol level statistics; it doesn't contain group information. This is the sysctl reported by 'netstat -g'. I guess I need to write some code to open /dev/kmem and walk ifmultihead. Or does someone have a hack lying around for this I can clean up and commit? BMS
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