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my $var = "62.40.40.30";

...
      print "Match not found.\n";
    }
}

if (exists ($hashArray{$var}))
{
...
        print "IP Matches!\n";
    }
}

if (exists ($hashArray{$var})){
   print "$var exists in the hash.\n";
   print "Its value is $hashArray{$var}\n";
}