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| author | Linus Lüssing <linus.luessing@c0d3.blue> | 2019-01-21 07:26:27 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-01-23 02:18:08 +0100 |
| commit | 4effd28c1245303dce7fd290c501ac2c11052114 (patch) | |
| tree | 93942c9d3f41fc3e58de6ce99fbc03319ddaa17e /include/video/mbxfb.h | |
| parent | bridge: simplify ip_mc_check_igmp() and ipv6_mc_check_mld() internals (diff) | |
| download | linux-4effd28c1245303dce7fd290c501ac2c11052114.tar.xz linux-4effd28c1245303dce7fd290c501ac2c11052114.zip | |
bridge: join all-snoopers multicast address
Next to snooping IGMP/MLD queries RFC4541, section 2.1.1.a) recommends
to snoop multicast router advertisements to detect multicast routers.
Multicast router advertisements are sent to an "all-snoopers"
multicast address. To be able to receive them reliably, we need to
join this group.
Otherwise other snooping switches might refrain from forwarding these
advertisements to us.
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/video/mbxfb.h')
0 files changed, 0 insertions, 0 deletions