Well you need to split the line into words and test the IP field.

I can't tell what your field separator is (space or tab) and if the IP is always at the same position.

So try @fields = split /\t/, $line and print $line if grep { your_test($_) } @fields ( tab separator, IP position unclear)

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Wikisyntax for the Monastery

In reply to Re: How to grep matching IP address from a log file? by LanX
in thread How to grep matching IP address from a log file? by dotowwxo

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