I would use Net::Patricia, from the documentation:
This module uses a Patricia Trie data structure to quickly perform IP address prefix matching for applications such as IP subnet, network or routing table lookups. The data structure is based on a radix tree using a radix of two, so sometimes you see patricia implementations called "radix" as well. The term "Trie" is derived from the word "retrieval" but is pronounced like "try". Patricia stands for "Practical Algorithm to Retrieve Information Coded as Alphanumeric", and was first suggested for routing table lookups by Van Jacobsen. Patricia Trie performance characteristics are well-known as it has been employed for routing table lookups within the BSD kernel since the 4.3 Reno release.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||