Title: Internet Group Management Protocol, Version 3
Author(s): B. Cain, S. Deering, I. Kouvelas, B. Fenner, A. Thyagarajan.
Status: PROPOSED STANDARD
Date: Oct 2002
Length: 119726
Obsoletes: RFC2236
This document specifies Version 3 of the Internet Group Management Protocol, IGMPv3. IGMP is the protocol used by IPv4 systems to report their IP multicast group memberships to neighboring multicast routers. Version 3 of IGMP adds support for "source filtering", that is, the ability for a system to report interest in receiving packets
only from specific source addresses, or from all but specific source addresses, sent to a particular multicast address. That information may be used by multicast routing protocols to avoid delivering multicast packets from specific sources to networks where there are no interested receivers.
This document obsoletes RFC2236.
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