2008/10/21 Artem Makhutov <[EMAIL PROTECTED]> > Hi, > > On Tue, Oct 21, 2008 at 04:44:20PM +0200, Frank Schmirler wrote: > > On Tue, 21 Oct 2008 14:46:52 +0200, Artem Makhutov wrote > > > The ADB-Boxes use Multicast-TS. I have captured a transmission from > > > my IPTV provider. So you can take a look on it: > > > > > > http://www.makhutov.org/downloads/adb/ > > > > The .pcap file is not accessible. Would it contain the IGMP traffic, too? > > Ah, sorry, I fixed the permissions. > Yes, you can the the IGMP traffic there. > > Packet #4 is the IGMG Join Group packet. After this one the stream > starts. Packet 1,2 and 3 not relevant, they are used for other multicast > stuff. > > Packet #23114 is the IGMP Leave, after this packet the ISP stops the > multicast transmission.
So we can safely assume that this is at least IGMPv2 packets. Since IGMPv1 doesn't have a "Leave Group message". source : http://www.linux.org/docs/ldp/howto/Multicast-HOWTO-7.html
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