3 NET_IPV6_ROUTE_GC_THRESH
4 NET_IPV6_ROUTE_MAX_SIZE
5 NET_IPV6_ROUTE_GC_MIN_INTERVAL
6 NET_IPV6_ROUTE_GC_TIMEOUT
7 NET_IPV6_ROUTE_GC_INTERVAL
8 NET_IPV6_ROUTE_GC_ELASTICITY
9 NET_IPV6_ROUTE_MTU_EXPIRES
10 NET_IPV6_ROUTE_MIN_ADVMSS
12 NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS