Tweak definition of a permanent IPv6 address on Linux.

The linux kernel treats all addresses with a limited lifetime as being
non permanent, but when taking over the prefix livetimes from
upstream assigned prefixes through DHCP, addresses will always have a limited
lifetime.

Still reject temporary addresses, as they indicate autoconfigured
interfaces.

Contributed by T-Labs, Deutsche Telekom Innovation Laboratories

Signed-off-by: Jonas Gorski<jogo@openwrt.org>
1 file changed