use IO::Socket;

my $new_sock;
my $sock = new IO::Socket::INET (
                                 LocalHost => 'localhost',
                                 LocalPort => '7070',
                                 Proto => 'tcp',
                                 Listen => 1,
                                 Reuse => 1,
                                 );
die "Could not create socket: $!\n" unless $sock;

while ($new_sock = $sock->accept()){

  while(defined($buffer = <$new_sock>)) {

  $buffer = unpack("a4", $buffer);
  $buffer = inet_ntoa($buffer);
  print $buffer, "\n";
  }

}

close($sock);