1NET_IPV6_ROUTE_FLUSH
2NET_IPV6_ROUTE_GC_THRESH
3NET_IPV6_ROUTE_MAX_SIZE
4NET_IPV6_ROUTE_GC_MIN_INTERVAL
5NET_IPV6_ROUTE_GC_TIMEOUT
6NET_IPV6_ROUTE_GC_INTERVAL
7NET_IPV6_ROUTE_GC_ELASTICITY
8NET_IPV6_ROUTE_MTU_EXPIRES
9NET_IPV6_ROUTE_MIN_ADVMSS
10NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS
11