[automerger skipped] Support DNS64 synthesis using externally-discovered...
[automerger skipped] Support DNS64 synthesis using externally-discovered prefixes. am: 346737c0 -s ours
am skip reason: Change-Id I7c63fb62b70635a1b5cc7a21d60f091ba2705d72 with SHA-1 e51091d1 is in history
Change-Id: I726149160dec3776bc175e59b7ed583ce111427d