View Source: ULA - Waikato Linux Users Group

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[Acronym] for __U__nique __L__ocal __A__dressess

[IPv6]'s answer to RFC:1918.  ULA addresses are reasonably unique but only locally routable and are designed to replace SiteLocal addresses (which were deprecated in RFC:3879)

There are two alternative specifications, each allocated to one half of ULA space.  One has people randomly allocate addresses (in FD00::/8) in a way that makes it statistically improbable that two people will generate the same address and then want to communicate.  The second way has the addresses (in FC00::/8) assigned "free" by a central authority thus preventing two people from using the same addresses.

The current draft ULA draft: http://people.nokia.net/~hinden/draft-ietf-ipv6-unique-local-addr-09.txt

This has been announced as RFC:4193 <tt>Unique Local IPv6 Unicast Addresses</tt>

3 pages link to ULA:

IPv6Addressing
IPv6
SiteLocal

Last edited on Wednesday, September 2, 2009 5:37:40 pm by LawrenceDoliveiro

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