ra_default integer 0 Override default route
0: default, 1: ignore no public address, 2: ignore all
-ra_management integer 1 RA management mode
- 0: no M-Flag but A-Flag, 1: both M and A, 2: M but not A
+ra_flags list other-config List of RA flags to be
+ advertised in RA messages
+ [managed-config other-config home-agent none]
+ra_slaac bool 1 Announce slaac for a prefix
ra_offlink bool 0 Announce prefixes off-link
ra_preference string medium Route(r) preference
[medium|high|low]