IPOPT_RA
u8 ra[AMT_IPHDR_OPTS] = { IPOPT_RA, 4, 0, 0 };
((u8 *)&iph[1])[0] = IPOPT_RA;
case IPOPT_RA:
((u8 *)&pip[1])[0] = IPOPT_RA;
((u8 *)&iph[1])[0] = IPOPT_RA;
case IPOPT_RA:
case IPOPT_RA:
case IPOPT_RA: