DHCP: Ensure dhcp is running on the interface received from
BSD: Link handling has been simplified, however it is expected
that if an interface supports SIOCGIFMEDIA then it reports
the correct link status via route(4) for reliable operations
BPF: ARP filter is more robust
BSD and sun: Validate RTM message lengths
DHCPv6 (security): Fix a potential read overflow with D6_OPTION_PD_EXCLUDE
7127c699c2