IFF_LINK1
DEF_CMD("link1", IFF_LINK1, setifflags),
DEF_CMD("-link1", IFF_LINK1, clearifflags),
DEF_CMD("noicmp", IFF_LINK1, setifflags),
case IFF_LINK1:
ip_ecn_ingress((ifp->if_flags & IFF_LINK1) ? ECN_ALLOWED:
ip6_ecn_ingress((ifp->if_flags & IFF_LINK1) ? ECN_ALLOWED:
if (ip_ecn_egress((ifp->if_flags & IFF_LINK1) ? ECN_ALLOWED:
if (ip6_ecn_egress((ifp->if_flags & IFF_LINK1) ? ECN_ALLOWED:
if (ifp->if_flags & IFF_LINK1)
if ((ifp->if_flags & IFF_LINK1) != 0)
IFFLAG("LINK1", IFF_LINK1);