commit 9808952bdf2fa6ce4cbd790d1967691bb95bf327
author Lorenzo Colitti <lorenzo@google.com> Thu Oct 09 22:29:45 2014 +0900
committer Lorenzo Colitti <lorenzo@google.com> Tue Oct 28 15:30:45 2014 +0900
tree a8d6d5b896805560ac662eee1c5790d14b863c88
parent 74151e9d0cda83f77d9dbce62bf8a1340cb08386

Generate a random IID if one is not specified.

- Add code to generate a random IPv6 address that's
  checksum-neutral with the NAT64 prefix and clat IPv4 address.
- Only calculate the IP address after the NAT64 prefix is known.
- Because the clat IPv6 address is no longer determinisitic,
  modify interface_poll so it checks whether the prefix has
  changed instead of checking whether the IPv6 address has
  changed.
- Add/update unit tests.

Change-Id: Ia53716ca5315ebdd0eaa3ad3a07552bf18e9dd5c