[OpenWrt-Devel] IPv6/odhcpd: Attempt to workaround phones ignoring RAs in standby + to fix NDP-relays

[Steven Barth]

Hi everyone,

I just pushed a few experimental changes to trunk for odhcpd.


#1 Unsolicited RAs are now also sent via unicast to known neighbors

This may help address an issues commonly seen in some android phones.
Some popular devices seem to ignore MC RAs during standby / display off,
thus once address / route lifetimes run out they loose IPv6 connectivity.

IPv6 connectivity is only regained after the device is in use AND the
next multicast RA is received. For details, see:
https://code.google.com/p/android/issues/detail?id=32662



#2 Finally, another attempt at fixing the NDP / RA / DHCPv6 relay.

Some kernel semantics seem to have changed and I hope the new version
works better now.


Both changes are experimental, so if you are affected it would be nice
to get some feedback.


Cheers,

Steven
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