IPv6 docs

[Alexey Ivanov]

In handbook http://www.freebsd.org/doc/en/books/handbook/network-ipv6.html

Section 31.11 IPv6
   1. There is not only stateless, but also statefull autoconfiguration described in rfc3315

Table 31-2. Reserved IPv6 addresses
   1. Site-local is deprecated by rfc3879
   2. Unique Local IPv6 Unicast Addresses that replaces them described in rfc4193
   3. Multicast is ffxx::/8 ( http://www.iana.org/assignments/ipv6-multicast-addresses/ ), not a ff::/8 witch means 00ff::/8
   4. It'll be good to describe 2002::/16 and 2001::/32 prefixes 

In 31.11.3 Getting Connected
   1. It'll be good to mention Hurricane Electric (http://tunnelbroker.net/) and it's basic setup
   2. and net/gateway6 port

-- 
Sincerely y0uRz,
Alexey Ivanov