http://www.perlmonks.org?node_id=1011070


in reply to Updating a binary value in Net::LDAP

If we call it an "octet string", instead of "binary", a concatenated octet string can be generated and stored like this (untested):
use Socket qw( inet_aton ); ... fileStore => join ('', map {inet_aton $_} @mynets),
This will be a concatenated string of 32-bit binary IP addresses (assuming IPv4), and can be written to a file.

             "By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest."           -Confucius