"RFC9463: DHCP and Router Advertisement Options for the Discovery of
Network-designated Resolvers (DNR)"
https://datatracker.ietf.org/doc/html/rfc9463
144 OPTION_V6_DNR
162 OPTION_V4_DNR
https://kea.readthedocs.io/en/kea-2.6.0/arm/dhcp4-srv.html#dnr-discovery-of-network-designated-resolve
The encoding is similar to DHCPv6 options FWIU:
"Update DNR implementation and docs to be inline with RFC 9463"
https://gitlab.isc.org/isc-projects/kea/-/issues/3141 :
> send each key=value encoded as key-type (2 octets), len (2 octects), value
> (variable)
>
> This is basically a very similar e
