[Asrg] For DNSBLs, embedded IPv4 in IPv6

[John Levine]

>>> 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?

R's,
John