IN6P_RFC2292
IN6P_TCLASS|IN6P_AUTOFLOWLABEL|IN6P_RFC2292|\
#define IS2292(inp, x, y) (((inp)->inp_flags & IN6P_RFC2292) ? (x) : (y))
inp->inp_flags |= IN6P_RFC2292; \
if (OPTBIT(IN6P_RFC2292)) { \
if (OPTBIT(IN6P_RFC2292)) {
if (OPTBIT(IN6P_RFC2292)) {