linux内核支持ipv6 nat又有了更新一步的进展。
http://lwn.net/Articles/514087/
估计不久会合并进新的内核了，有了ipv6 nat ,就用不着一人一IP，可以保护自己的隐私了。

Jesper Dangaard Brouer (1):
      Cleaning up the IPv6 MTU checking in the IPVS xmit code, by using     a common helper function __mtu_check_toobig_v6().

Pablo Neira Ayuso (2):
      netfilter: nf_nat: support IPv6 in IRC NAT helper
      netfilter: nf_nat: support IPv6 in TFTP NAT helper

Patrick McHardy (16):
      ipv4: fix path MTU discovery with connection tracking
      netfilter: nf_conntrack_ipv6: improve fragmentation handling
      netfilter: nf_conntrack_ipv6: fix tracking of ICMPv6 error messages containing fragments
      netfilter: nf_conntrack: restrict NAT helper invocation to IPv4
      netfilter: nf_nat: add protoff argument to packet mangling functions
      netfilter: add protocol independent NAT core
      netfilter: ipv6: expand skb head in ip6_route_me_harder after oif change
      net: core: add function for incremental IPv6 pseudo header checksum updates
      netfilter: ipv6: add IPv6 NAT support
      netfilter: ip6tables: add MASQUERADE target
      netfilter: ip6tables: add REDIRECT target
      netfilter: ip6tables: add NETMAP target
      netfilter: nf_nat: support IPv6 in FTP NAT helper
      netfilter: nf_nat: support IPv6 in amanda NAT helper
      netfilter: nf_nat: support IPv6 in SIP NAT helper
      netfilter: ip6tables: add stateless IPv6-to-IPv6 Network Prefix Translation target