[RFC PATCH net-next] bridge: Implement MLD Querier wake-up calls / Android bug workaround

[Bjørn Mork]

Linus Lüssing <linus.luessing at c0d3.blue> writes:

> Currently there are mobile devices (e.g. Android) which are not able
> to receive and respond to MLD Queries reliably because the Wifi driver
> filters a lot of ICMPv6 when the device is asleep - including
> MLD. This in turn breaks IPv6 communication when MLD Snooping is
> enabled. However there is one ICMPv6 type which is allowed to pass and
> which can be used to wake up the mobile device: ICMPv6 Echo Requests.

This is not a bug.  They are deliberately breaking IPv6 because they
consider this a feature.  You should not try to work around such issues.
It is a fight you cannot win.  Any workaround will only encourage them
to come up with new ways to break IPv6.


Bjørn