11<<ICMP_ECHOREPLY
21<<ICMP_DEST_UNREACH
31<<ICMP_SOURCE_QUENCH
41<<ICMP_REDIRECT
51<<ICMP_ECHO
61<<ICMP_TIME_EXCEEDED
71<<ICMP_PARAMETERPROB
81<<ICMP_TIMESTAMP
91<<ICMP_TIMESTAMPREPLY
101<<ICMP_INFO_REQUEST
111<<ICMP_INFO_REPLY
121<<ICMP_ADDRESS
131<<ICMP_ADDRESSREPLY
14