# Prefix Distribution

To configure prefix delegation for a Dynamic Host Configuration Protocol version 6 (DHCPv6) client, enter the following information, then click OK:

- Interface: This is the interface that you selected from the table and that hosts the DHCPv6 client.

- IAPD-ID: Enter a positive integer that identifies a certain prefix on the server. If you specify a nonzero Identity Association for Prefix Delegation Identifier (IAPD-ID), it maps statically to a single prefix that has the same IAPD-ID on the server. If you specify a zero IAPD-ID value or omit the value (which assigns it a zero value by default), the IAPD-ID maps it dynamically to a prefix pool on the server. The device treats all prefixes with a zero IAPD-ID as members of this pool.

- Delegate Prefix to Interface: Select the interface to which you want the DHCPv6 client to send information.

- SLA ID: Enter the identifier for the network or subnet of your organization.

- SLA Length: Enter a value in bits, from 0 to 16.