Navigation
Methods for Obtaining IPv6 Prefixes for NDRA
You can set up the BNG to select IPv6 prefixes used for NDRA through one of the following methods:
- An external source such as a AAA RADIUS server.
- Dynamic assignment from a local pool of NDRA prefixes that is configured on the BNG
Using AAA RADIUS Server to Obtain IPv6 Prefixes for NDRA
When the BNG needs to obtain a prefix for NDRA, it uses the values in one of the following RADIUS attributes that it receives in Access-Accept messages from the RADIUS server:
- Framed-IPv6-Prefix—The attribute contains an IPv6 prefix that the BNG can send to the CPE in router advertisement messages.
- Framed-IPv6-Pool—The attribute contains the name of an NDRA pool configured on the BNG from which the BNG can select a prefix to include in router advertisements.
