1<<ICMP_ECHOREPLY
1<<ICMP_DEST_UNREACH
1<<ICMP_SOURCE_QUENCH
1<<ICMP_REDIRECT
1<<ICMP_ECHO
1<<ICMP_TIME_EXCEEDED
1<<ICMP_PARAMETERPROB
1<<ICMP_TIMESTAMP
1<<ICMP_TIMESTAMPREPLY
1<<ICMP_INFO_REQUEST
1<<ICMP_INFO_REPLY
1<<ICMP_ADDRESS
1<<ICMP_ADDRESSREPLY
