1450d6e643
- remove net.inet6.ip6.nd6_proxyall. introduce proxy NDP code works just like "arp -s". - revise source address selection. be more careful about use of yet-to-be-valid addresses as source. - as router, transmit ICMP6_DST_UNREACH_BEYONDSCOPE against out-of-scope packet forwarding attempt. - path MTU discovery takes care of routing header properly. - be more strict about mbuf chain parsing.