Netgear FVS318N – Prosafe Wireless N VPN Firewall Reference Manual

If you do not configure stateful DHCPv6 for the LAN but use 
stateless DHCPv6, you need to 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 wireless 
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 need to 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 
have configured 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.



Select Network Configuration > LAN Setup.

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