For ePMP devices, the configuration parameter IPv6 Assignment specifies how the IPv6 address is obtained.
There are two applicable settings for the IPv6 Assignment parameter:
Static: Device management IP addressing is configured manually in fields IPv6 Address and IPv6 Gateway.
DHCPv6: Device management IP addressing (IP address and gateway) is assigned via a network DHCP server, and parameters IPv6 Address and IPv6 Gateway are unused. If the DHCPv6 server is not available previous static IPv6 address will be used as a fallback IPv6 address. If no previous static IPv6 address is available, no IPv6 address will be assigned. DHCPv6 will occur over the wireless interface by default.