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Selecting the Method of Provisioning a Global IPv6 Address for the WAN Link
To assign a global IPv6 address to the WAN link of the CPE device, you can choose one of the methods described in Table 1.
Table 1: Choosing the Global IPv6 Address Provisioning Method for the WAN Link
NDRA Features | DHCPv6 IA_NA Features |
|---|---|
Provides address autoconfiguration of the WAN link by means of router advertisements. | Provides a single IPv6/128 address to the WAN interface of the CPE by the BNG acting as a DHCPv6 server. |
Supported on PPPoE access networks. | Supported on PPPoE and DHCP access networks. |
Provides duplicate prefix prevention. | Provides the ability to use one DHCPv6 message to solicit both a global IPv6 address for the WAN link, and a prefix used to provision addresses on the subscriber LAN. |
Use if the CPE does not support DHCP. | -- |
