http://tools.ietf.org/html/rfc5782#section-2.4
For both IPv4 and IPv6 addresses, the records end up as:
[reversed IP].[zone]
There's a problem when you use wildcards on IPv4 addresses:
*.0.0.2.zone.example.com
Matches IPv6 2.0.0.* (2.0.0.0/8), but it also matches IPv6 2000/12.
Any IPv6 address starting with "200", as many do.
I think the RFC should be changed to add something to the IPv6 records to
differentiate them, just about anything but an integer from 0-255, like:
[reversed IP].v6.[zone]
Is there a problem with doing that?
Examples of this problem showing up can be found here:
https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6484#c25
--
"We will be dead soon. Is this how we want to live?"
http://www.ChaosReigns.com
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