[Bug 6203] Let AWL store IPv4 address /24 instead of /16

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https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6203

--- Comment #11 from Mark Martinec <Ma...@ijs.si> 2009-11-24 08:24:29 UTC ---
Ok, I give up :)  I'm making the mask length configurable (barring objections):


=item auto_whitelist_ipv4_mask_len n    (default: 16, range [0..32])

The AWL database keeps only the specified number of most-significant bits
of an IPv4 address in its fields, so that different individual IP addresses
within a subnet belonging to the same owner are managed under a single
database record. As we have no information available on the allocated
address ranges of senders, this CIDR mask length is only an approximation.
The default is 16 bits, corresponding to a former class B. Increase the
number if a finer granularity is desired, e.g. to 24 (class C) or 32.
A value 0 is allowed but is not particularly useful, as it would treat the
whole internet as a single organization. The number need not be a multiple
of 8, any split is allowed.


=item auto_whitelist_ipv6_mask_len n    (default: 48, range [0..128])

The AWL database keeps only the specified number of most-significant bits
of an IPv6 address in its fields, so that different individual IP addresses
within a subnet belonging to the same owner are managed under a single
database record. As we have no information available on the allocated address
ranges of senders, this CIDR mask length is only an approximation. The default
is 48 bits, corresponding to an address range commonly allocated to individual
(smaller) organizations. Increase the number for a finer granularity, e.g.
to 64 or 96 or 128, or decrease for wider ranges, e.g. 32.  A value 0 is
allowed but is not particularly useful, as it would treat the whole internet
as a single organization. The number need not be a multiple of 4, any split
is allowed.

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