[lwip-devel] [patch #9021] nd6: add support for RDNSS option as per RFC 6106

[Jan Breuer]

Follow-up Comment #2, patch #9021 (project lwip):

We can have a look at contiki, there is nice and clean implementation of
lifetimes

https://github.com/contiki-os/contiki/blob/master/core/net/ip/uip-nameserver.c

The advantage of this solution is, that anybody can check the validity of the
DNS server record. There is no need the check if the DNS was added by ND6 and
then ask ND6 if it is still valid.

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