Figure 22: Ipv6 Wan Setup Page - D-Link DWC-1000 User Manual

Wireless Controller
When the ISP allows you to obtain the WAN IP sett ings via DHCP, you need to
provide details for the DHCPv6 client configuration. The DHCPv6 client on the
gateway can be either stateless or stateful. If a stateful client is selected the gateway
will connect to the ISP's DHCPv6 server for a leased address. For stateless DHCP
there need not be a DHCPv6 server available at the ISP, rather ICMPv6 discover
messages will originate from this gateway and will be used for auto configuration. A
third option to specify the IP address and prefix length of a preferred DHCPv6
server is available as well.

Figure 22: IPv6 WAN Setup page

Prefix Delegation: Select this option to request controller advertisement prefix from
any available DHCPv6 servers available on the ISP, the obtained prefix is updat ed
to the advertised prefixes on the LAN side. This option can be selected only in
Statesless Address Auto Configuration mode of DHCPv6 Client.
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User Manual