From the Regexp::Common::net docs:

$RE{net}{IPv4}

Returns a pattern that matches a valid IP address in "dotted decimal"

So it only matches the traditional dotted-quad form of IPv4 addresses. That's just one format IPv4 can come in (albeit the most common). There are modifiers Regexp::Common allows for some other formats (like "dotted hex"), but not all possible formats (a simple 32-bit number, for example).

----
: () { :|:& };:

Note: All code is untested, unless otherwise stated

In reply to Re: Re: Re: Re: Can you spot the problem? by hardburn
in thread Can you spot the problem? by dws

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