Mr. Muskrat has made some valid coding suggestions.
I would suggest using GREP as in the following code to make the IP searching easier on the eye, and possibly faster ..

my @ips = (qw(
   192.168.188.3
   192.168.11.141
   192.168.140.110
   192.168.186.192
   192.168.186.166
   192.168.139.50
   192.168.139.198
   192.168.132.101 ));


while (<FILE>){
  print unless grep(/^$_$/,@ips) > 0;
}
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