NPTv6
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NPTv6

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NPTv6

IPv6-to-IPv6 Network Prefix Translation (NPTv6) performs a stateless, static translation of one IPv6 prefix to another IPv6 prefix (port numbers are not changed). There are four primary benefits of NPTv6:
  • You can prevent the asymmetrical routing problems that result from Provider Independent addresses being advertised from multiple datacenters.
  • NPTv6 allows more specific routes to be advertised so that return traffic arrives at the same firewall that transmitted the traffic.
  • Private and public addresses are independent; you can change one without affecting the other.
  • You have the ability to translate Unique Local Addresses to globally routable addresses.
This topic builds on a basic understanding of NAT. You should be sure you are familiar with NAT concepts before configuring NPTv6.

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