ndproxy_enable="YES"
ndproxy_uplink_interface="lagg0"
ndproxy_downlink_mac_address="3c:ec:ef:bf:41:be" # Mac address of lagg0
ndproxy_uplink_ipv6_addresses="fe80::21c:73ff:fe9d:c083" # uplink router's address (ndp -na) <-- Link-Local address of vtnet0