traceroute to 203.21.20.20 (203.21.20.20), 30 hops max, 38 byte packets
traceroute: sendto: Network is unreachable
 1 traceroute: wrote 203.21.20.20 38 chars, ret=-1
 *traceroute: sendto: Network is unreachable
traceroute: wrote 203.21.20.20 38 chars, ret=-1
 *traceroute: sendto: Network is unreachable
traceroute: wrote 203.21.20.20 38 chars, ret=-1
 *
traceroute: sendto: Network is unreachable
 2 traceroute: wrote 203.21.20.20 38 chars, ret=-1
 *traceroute: sendto: Network is unreachable
traceroute: wrote 203.21.20.20 38 chars, ret=-1
 *traceroute: sendto: Network is unreachable
traceroute: wrote 203.21.20.20 38 chars, ret=-1
 *
traceroute: sendto: Network is unreachable
 3 traceroute: wrote 203.21.20.20 38 chars, ret=-1