ra_useleasetime bool 0 Use configured leasetime as
limit for the preferred and
valid lifetime of a prefix
+ra_hoplimit integer 0 Current hoplimit to be advertised
+ in RA messages
+ra_mtu integer 0 MTU to be advertised in
+ RA messages
ndproxy_routing bool 1 Learn routes from NDP
ndproxy_slave bool 0 NDProxy external slave