Date: Mon, 20 Jul 2009 19:35:14 +0200 From: Pieter de Goeje <pieter@degoeje.nl> To: Bruce Simpson <bms@incunabulum.net> Cc: freebsd-current@freebsd.org Subject: Re: Sending multicast datagrams broken (regression) Message-ID: <200907201935.14389.pieter@degoeje.nl> In-Reply-To: <4A628056.60009@incunabulum.net> References: <200907182056.47383.pieter@degoeje.nl> <4A628056.60009@incunabulum.net>
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On Sunday 19 July 2009 04:09:26 Bruce Simpson wrote: > Pieter de Goeje wrote: > > I'm observing that multicast IPv4 UDP datagrams sent from the latest > > 8.0-BETA2 are being discarded. The code below used to work with 7.2. > > Can you tcpdump this? > > This may be related to an llentry related regression which Xin Li > recently posted a patch for, it appears that layer 2 addresses for > multicast/broadcast datagrams may be broken in 8.0-BETA2. > > Although I haven't tested this myself since committing the SSM code > around April, where I observed such traffic was correct. Dump from an 8.0 sender: http://unforgiven.student.utwente.nl/~pyotr/dump/mcast Indeed it looks like the destination mac address is different from the dump generated by 7.2. 8.0: 00:00:0c:07:ac:00 7.2: 01:00:5e:7f:09:09 Kind regards, Pieter de Goeje
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