[Bridge] [PATCH net] bridge: ebtables: fix reception of frames DNAT-ed to bridge device

Linus Lüssing linus.luessing at c0d3.blue
Sun Mar 19 16:55:06 UTC 2017


On Fri, Mar 17, 2017 at 02:10:44PM +0100, Pablo Neira Ayuso wrote:
> Wait.
> 
> May this break local multicast listener that are bound to the bridge
> interface? Assuming the bridge interface got an IP address, and that
> there is local multicast listener.
> 
> Missing anything here?

Hm, for multicast packets usually the code path a few lines
later in br_handle_frame_finish() should be taken instead.

But you might be right for IP multicast packets with a unicast MAC
destination (due to whatever reason, for instance via DNAT'ing
again).

Will check that - thanks!


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