ipips_spoof       296 netinet/ip_ipip.c 						ipipstat.ipips_spoof++;
ipips_spoof       312 netinet/ip_ipip.c 						ipipstat.ipips_spoof++;
ipips_spoof        55 netinet/ip_ipip.h     u_int32_t	ipips_spoof;		/* IP spoofing attempts */