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SubjectRe: [PATCH net-next v2 0/4] bridge: implement Multicast Router Discovery (RFC4286)
From: Linus Lüssing <>
Date: Mon, 21 Jan 2019 07:26:24 +0100

> This patchset adds initial Multicast Router Discovery support to
> the Linux bridge (RFC4286). With MRD it is possible to detect multicast
> routers and mark bridge ports and forward multicast packets to such routers
> accordingly.
> So far, multicast routers are detected via IGMP/MLD queries and PIM
> messages in the Linux bridge. As there is only one active, selected
> querier at a time RFC4541 ("Considerations for Internet Group Management
> Protocol (IGMP) and Multicast Listener Discovery (MLD) Snooping
> Switches") section 2.1.1.a) recommends snooping Multicast Router
> Advertisements as provided by MRD (RFC4286).
> The first two patches are refactoring some existing code which is reused
> for parsing the Multicast Router Advertisements later in the fourth
> patch. The third patch lets the bridge join the all-snoopers multicast
> address to be able to reliably receive the Multicast Router
> Advertisements.

Series applied, thanks!

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