Symbol: ITP_P_ISTUNNEL
usr/src/uts/common/inet/ip/spdsock.c
1073
if ((tunnel_mode && !ITP_P_ISTUNNEL(itp, iph)) ||
usr/src/uts/common/inet/ip/spdsock.c
1074
(!tunnel_mode && ITP_P_ISTUNNEL(itp, iph))) {