Netgear FVS318Gv2 – ProSAFE VPN Firewall Series Reference Manual

The information is deleted.

Configure the IPv6 Router Advertisement Daemon and
Advertisement Prefixes for the LAN

If you do not configure stateful DHCPv6 for the LAN but use stateless 
DHCPv6, you must configure the Router Advertisement Deamon 
(RADVD) and advertisement prefixes.

The RADVD is an application that uses the Neighbor Discovery Protocol (NDP) to collect 
link-local advertisements of IPv6 addresses and IPv6 prefixes in the LAN. The RADVD then 
distributes this information in the LAN, which allows IPv6 clients to configure their own IPv6 
address. 

Hosts and routers in the LAN use NDP to determine the link-layer addresses and related 
information of neighbors in the LAN that can forward packets on their behalf. The VPN 
firewall periodically distributes router advertisements (RAs) throughout the LAN to provide 
such information to the hosts and routers in the LAN. RAs include IPv6 addresses, types of 
prefixes, prefix addresses, prefix lifetimes, the maximum transmission unit (MTU), and so on. 
In addition to configuring the RADVD, you also must configure the prefixes that are 
advertised in the LAN RAs.

The following table provides an overview of how information is obtained in the LAN when you 
configure a stateless DHCPv6 server and the RADVD:

When the Managed flag is set in the RADVD, the DHCPv6 server can assign IP addresses, 
and the RADVD also assigns IP addresses in the sense that it provides information that 
allows IPv6 clients to configure their own IPv6 address.

When the Other flag is set, the DHCPv6 server does not assign IP addresses but provides 
DNS server and other configuration information only.

Managed RA flag is set.

IP  address  assignment

DNS  server  and  other  configuration 
information

IP  address  assignment

Prefix

Prefix  length

Gateway  address

Other RA flag is set.

DNS server and other configuration information

IP  address  assignment

Prefix

Prefix  length

Gateway  address