[Asrg] Another dnsbl draft, now standards flavored

der Mouse mouse at Rodents-Montreal.ORG
Mon Jul 28 20:50:18 PDT 2008


> This is a case of "everything you know is wrong", because there are
> fundamental differences between IPV4 and IPV6.  In short, *** IPV6
> DOES NOT HAVE ANYTHING EQUIVALANT TO IPV4's 127.0.0.0/8 address range
> ***.

It doesn't need to.  The A records returned by DNSLs are not machine
addresses; there is no reason not to use the full 32 bits available,
except human discomfort with treating A records that way.

> Don't assume that you can play fast and loose with 16 million
> addresses in the range ::0 to ::FF:FF:FF:FF.

::0 through ::FF:FF:FF:FF is ff00ff00ff0100 hex, or 71777214294589696
decimal, addresses, not anything like 16 million.  If you mean 16777216
addresses, ITYPM ::0 through ::ff:ffff.

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