Voir la source de Ipv6 cheatsheet

RA flags :
* M 	Managed Address Configuration flag. If set indicates host should use stateful configuration (e.g. DHCPv6) for address data.
* O 	Other Configuration flag. Indicates "other" information (such as DNS server addresses) is available using stateful configuration (e.g. DHCPv6).
* A 	autonomous address-configuration flag. When set indicates that this prefix can be used for stateless autoconfiguration.

pfsense RA configuration :
* Router Only: Clients will need to set addresses statically
* Unmanaged: Client addresses obtained only via Stateless Address Autoconfiguration (SLAAC).
* Managed: Client addresses assigned only via DHCPv6.
* Assisted: Client addresses assigned by either DHCPv6 or SLAAC (or both).