pack("a4", inet_aton("192.168.1.1")); #### unpack("a4", inet_ntoa($buffer); #### use IO::Socket; $IP_Address = '10.10.10.1'; $buffer = inet_aton($IP_Address); $buffer = pack("a4", $buffer); my $sock = new IO::Socket::INET ( PeerAddr => 'localhost', PeerPort => '7070', Proto => 'tcp' ); die "Could not create socket: $!\n" unless $sock; print $sock $buffer; close($sock); #### 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);