Unique identifier for the DHCPv6 client. The type used for identification is configured by the parameter Identifier type.
Possible formats:
- Specification as a client DUID, e.g. 0003000100a057000001
 - Specification as a MAC address, e.g. 00a057000001
 - Specification as an interface ID or remote ID, e.g. INTRANET
 
- SNMP ID:
 - 2.70.3.1.6.3
 - Console path:
 - Setup > IPv6 > DHCPv6 > Server > Reservations
 - Possible values:
 A hex string with max. 127 characters [a-z][0-9]:-
- Default:
 - empty