DHCPv6 client settings/options DHCP unique identifier (DUID) to be sent by dhcpv6 client <h:h:h:h:h:h:h:h:h:h:h:h:h:h:h:h> DHCP unique identifier (DUID) Acquire only config parameters, no address DHCPv6 prefix delegation interface statement instance number Prefix delegation instance (>= 0) Request IPv6 prefix length from peer 32-64 Length of delegated prefix 64 Delegate IPv6 prefix from provider to this interface Local interface address assigned to interface >0 Used to form IPv6 interface address (default: EUI-64) Interface site-Level aggregator (SLA) 0-128 Decimal integer which fits in the length of SLA IDs Wait for immediate reply instead of advertisements IPv6 temporary address