Symbol: ICMP_UNREACH_NEEDFRAG
usr/src/uts/common/inet/ipf/netinet/ip_compat.h
1957
# define ICMP_UNREACH_NEEDFRAG 4
usr/src/uts/common/netinet/ip_icmp.h
135
#define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */