NETCONFA_UNSPEC				0
NETCONFA_IFINDEX			1
NETCONFA_FORWARDING			2
NETCONFA_RP_FILTER			3
NETCONFA_MC_FORWARDING			4
NETCONFA_PROXY_NEIGH			5
NETCONFA_IGNORE_ROUTES_WITH_LINKDOWN	6
NETCONFA_INPUT				7
NETCONFA_BC_FORWARDING			8