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ae
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2018-12-12T09:03:10.661469Z
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V 561
MFC r340360:
  Add ability to use dynamic external prefix in ipfw_nptv6 module.

  Now an interface name can be specified for nptv6 instance instead of
  ext_prefix. The module will track if_addr_ext events and when suitable
  IPv6 address will be added to specified interface, it will be configured
  as external prefix. When address disappears instance becomes unusable,
  i.e. it doesn't match any packets.

  Reviewed by:	0mp (manpages)
  Tested by:	Dries Michiels <driesm dot michiels gmail com>
  Differential Revision:	https://reviews.freebsd.org/D17765

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