Just a note here, chances are that 
 if($_ =~ /\d+.\d+.\d+.\d+/)

[download]
won't be matching IPv6 addresses, since they are normally in hex, can you show us a sample of your file2.txt so we can help you better?

In reply to Re^4: PERL SCRIPT FOR IPv6 LOOK-UP by AndyZaft
in thread PERL SCRIPT FOR IPv6 LOOK-UP by sam127

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