I reread RFC 5782. I don't see any place that it tells people to
use the same name for IPv4 and IPv6 DNSBLs. The last paragraph in
section 2 says:
A single DNSxL could in principle contain both IPv4 and IPv6
addresses, since the different lengths prevent any ambiguity. If a
DNSxL is represented using traditional zone files and wildcards,
there is no way to specify the length of the name that a wildcard
matches, so wildcard names would indeed be ambiguous for DNSxLs
served in that fashion.
If you think it does tell people to use the same name, please say
where, preferably citing page and line numbers.
Also, if you're not familiar with the RFC series, some RFCs are
standards, most aren't. This one isn't. It says so right at the
top.
R's,
John
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