If you want to assign fixed IPv6 addresses to clients or fixed prefixes to routers, you can use this table to make a reservation for each client.
- Interface name/Relay IP
- Name of the interface on which the DHCPv6 server is working, for example "INTRANET". Alternatively, you can also enter the IPv6 address of the remote relay agent.
- Address/PD prefix
- IPv6 address or PD prefix that you want to assign statically.
- Identifier type
- This type specifies how the Identifier is to be interpreted.
- Client ID
- The identifier specifies the client DUID, e.g. 0003000100a057000001.
- MAC address
- The identifier specifies a MAC address, e.g. 00a057000001. If the client communicates directly with the server, the MAC address is taken from the DHCPv6 packet. If relay agents are used, it is taken from the client link-layer address option (code 79, RFC 6939) in the relay-forward message from the relay agent that is closest to the client.
- Interface ID
- The identifier specifies the interface ID from the interface-ID option (code 18) in the relay-forward message from the relay agent that is closest to the client. This only works with one relay agent.
- Remote ID
- The identifier specifies the remote ID from the remote-ID option (code 37, RFC 4649) in the relay-forward message from the relay agent that is closest to the client. This only works with one relay agent.
- Identifier
- 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"
- Preferred lifetime:
- Here you specify the time in seconds that the client should treat this address as "preferred". After this time elapses, a client classifies this address as "deprecated".
- Validity period
- Here you specify the time in seconds that the client should treat this address as "valid".Note: If you use a prefix from a WAN interface for dynamic address formation, you cannot configure values for Preferred lifetime and Valid lifetime. In this case, the device automatically determines the values that apply to the prefix delegated by the provider.
- Receive prefix from
- Name of the WAN interface from which the client should use the prefix to form the address or prefix.
