Darren Pilgrim:
> The man pages given in the subject both state an IPv6 address "is a 
> sequence of three to eight hexadecimal octet pairs separated by ':'."
> 
> I find that a tad unclear.  How is :: handled?  Can I put 2001:db8:1::1 
> or do I need to enter it as 2001:db8:1:0:0:0:0:1?  Does the format 
> support trimming leading zeroes from each octet pair?

This text is talking about ADDRESS notation.

Postfix supports the "short-hand" notation that replaces a sequence
of 0 bytes in an IP address by ::.

> IPv6 prefixes that should match 2001:db8::/32 and fe80::/16, 
> respectively, per the search algorithm, but they have less than two 
> octet pairs.

You are now talking about a PREFIX.

A PREFIX is not an ADDRESS. 

The ADDRESS is 3-8 fields separated by :.

The PREFIX is created by dropping ":octetpair" from the IPv6 address.

        Wietse

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