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6.1. Advantages

6.1. Advantages​

This approach has the following advantages:

  • Provides Local IPv6 prefixes that can be used independently of any provider-based IPv6 unicast address allocations. This is useful for sites not always connected to the Internet or sites that wish to have a distinct prefix that can be used to localize traffic inside of the site.

  • Applications can treat these addresses in an identical manner as any other type of global IPv6 unicast addresses.

  • Sites can be merged without any renumbering of the Local IPv6 addresses.

  • Sites can change their provider-based IPv6 unicast address without disrupting any communication that uses Local IPv6 addresses.

  • Well-known prefix that allows for easy filtering at site boundary.

  • Can be used for inter-site VPNs.

  • If accidently leaked outside of a site via routing or DNS, there is no conflict with any other addresses.

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