IPOPT_OPTVAL      715 netinet/ip_icmp.c 				opt = cp[IPOPT_OPTVAL];
IPOPT_OPTVAL     1026 netinet/ip_input.c 		opt = cp[IPOPT_OPTVAL];
IPOPT_OPTVAL     1631 netinet/ip_output.c 		opt = cp[IPOPT_OPTVAL];