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H A D | br_multicast.c | fe29ec41 Thu Feb 17 02:17:52 CST 2011 Linus Lüssing <linus.luessing@web.de> bridge: Use IPv6 link-local address for multicast listener queries
Currently the bridge multicast snooping feature periodically issues IPv6 general multicast listener queries to sense the absence of a listener.
For this, it uses :: as its source address - however RFC 2710 requires: "To be valid, the Query message MUST come from a link-local IPv6 Source Address". Current Linux kernel versions seem to follow this requirement and ignore our bogus MLD queries.
With this commit a link local address from the bridge interface is being used to issue the MLD query, resulting in other Linux devices which are multicast listeners in the network to respond with a MLD response (which was not the case before).
Signed-off-by: Linus Lüssing <linus.luessing@web.de> Signed-off-by: David S. Miller <davem@davemloft.net> fe29ec41 Thu Feb 17 02:17:52 CST 2011 Linus Lüssing <linus.luessing@web.de> bridge: Use IPv6 link-local address for multicast listener queries Currently the bridge multicast snooping feature periodically issues IPv6 general multicast listener queries to sense the absence of a listener. For this, it uses :: as its source address - however RFC 2710 requires: "To be valid, the Query message MUST come from a link-local IPv6 Source Address". Current Linux kernel versions seem to follow this requirement and ignore our bogus MLD queries. With this commit a link local address from the bridge interface is being used to issue the MLD query, resulting in other Linux devices which are multicast listeners in the network to respond with a MLD response (which was not the case before). Signed-off-by: Linus Lüssing <linus.luessing@web.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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