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| author | bms <bms@FreeBSD.org> | 2004-06-16 05:04:17 +0000 |
|---|---|---|
| committer | bms <bms@FreeBSD.org> | 2004-06-16 05:04:17 +0000 |
| commit | 9756fdf7681e47cac2fd8c611bea20724470df33 (patch) | |
| tree | 69527db5fbab89e3389b2731c0409470e4559506 /share/man/man4/ip.4 | |
| parent | 1e2bc9e8f6882b458dde15a5522bbc9a2aa91b7d (diff) | |
| download | FreeBSD-src-9756fdf7681e47cac2fd8c611bea20724470df33.zip FreeBSD-src-9756fdf7681e47cac2fd8c611bea20724470df33.tar.gz | |
Document the behaviour of IP_ADD_MEMBERSHIP as per RFC 1724.
PR: bin/51927
Diffstat (limited to 'share/man/man4/ip.4')
| -rw-r--r-- | share/man/man4/ip.4 | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/share/man/man4/ip.4 b/share/man/man4/ip.4 index 647ebfa..575725f 100644 --- a/share/man/man4/ip.4 +++ b/share/man/man4/ip.4 @@ -432,14 +432,22 @@ struct ip_mreq { .Ed .Pp .Dv imr_interface -should -be +should be set to .Dv INADDR_ANY to choose the default multicast interface, or the .Tn IP address of a particular multicast-capable interface if the host is multihomed. +Since +.Fx 4.4 , +if the +.Dv imr_interface +member is within the network range +.Li 0.0.0.0/8 , +it is treated as an interface index in the system interface MIB, +as per the RIP Version 2 MIB Extension (RFC-1724). +.Pp Membership is associated with a single interface; programs running on multihomed hosts may need to join the same group on more than one interface. |
