How hosts tell routers
about group membership
Routers solicit group
membership from directly connected hosts
RFC 1112 specifies
version 1 of IGMP
Supported on Windows 95
RFC 2236 specifies
version 2 of IGMP
Supported on latest service pack for Windows,
newer Windows releases, and
most UNIX systems
IGMP version 3 is
specified in IETF draft
RFC3376
provides source include-list capabilities
(SSM!)
Support?
FreeBSD patch, Linux
patch, Window XP
http://videolab.uoregon.edu