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server-duid-type (DHCP Local Server)


Hierarchy Level


Configure the DHCP Unique Identifier (DUID) type that the DHCPv6 server supports. The server uses the DUID to identify clients for configuration and to group clients into identity associations.

Use this statement to explicitly configure the DUID-LL type. DUID-LL uses a link-layer network interface address on the device as part of the unique identifier. Remove this configuration to return to the default type, DUID-EN. DUID-EN has a vendor-assigned value based on the vendor’s enterprise number and an IANA-recognized hardware type code. DUID-EN is not explicitly configurable.


The DUID-LLT type is not supported.



DUID type to support. The only available option is duid-ll.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 16.1.