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