On Aug 4, 2008, at 6:01 AM, John Levine wrote:
Someone pointed out that in some popular dual stack systems,
connections from IPv4 addresses appear as IPv6 addresses
in :FFFF:0000:0000/96
Could someone explain why a DNSBL needs to return IPV6 addresses?
I don't know anyone who thinks that a DNSBL should return anything
other than A and TXT records. What leads you to believe otherwise?
Agreed. Keep answers to A and TXT records. Just different names are
being questioned. A records provide 4095 different values which seems
more that adequate. Internally, we are using 16 bits filtered against
customer preferences. When memory becomes limited, TXT records seem
the first items dropped from the answer.
-Doug
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