I may misunderstand your question, but...

Given a textual URL (protocol://host.dom/dir/file), the first thing you'll need to do is extract the "host.dom" part from the entire URL.   A CPAN search on "url" turns up some hits on modules that may (or may not) help.   Next you'd need to resolve the host names to IP addresses using DNS.   A quick look through Networking Code in Code Catacombs finds (code) Resolve list of DNS names by yours truly that should do nicely.

But if you want to match URL entries containing IP addresses instead of 'host.dom', then check out Regexp::Common::net by our very own Abigail-II.
    cheers,
    Don
    striving toward Perl Adept
    (it's pronounced "why-bick")

In reply to Re: Getting IP from URL by ybiC
in thread Getting IP from URL by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • 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:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.