$1 Corresponds to the first opening capturing parenthesis, $2 corresponds to the second one. You probably want to use $5 instead of $2 - let us count:
((([2]([0-4][0-9]|[5][0-5])|[0-1]?[0-9]?[0-9])[.]){3}(([2]([0-4][0-9]|
+[5][0-5])|[0-1]?[0-9]?[0-9]))).*(
123   4                                              56   7

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In reply to Re: Using variable to hold regex expression by choroba
in thread Using variable to hold regex expression by salatconed

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