+-------------+           +-------------+             +-------+
|     CPE     |           |     NAS     |             |  AAA  |
|DHCPv6 Client|           |DHCPv6 Server|             |Server |
|             |           |RADIUS Client|             |       |
+------+------+           +------+------+             +---+---+
       |                         |                        |
       o-----DHCPv6 Solicit----->|                        |
       |                         o----Access-Request ---->|
       |                         |                        |
       |                         |<----Access-Accept------o
       |                         |     DHCPv6-Options     |
       |<----DHCPv6 Advertise----o    (OPTION_V6_DNR)     |
       |     (OPTION_V6_DNR)     |                        |
       |                         |                        |
       o-----DHCPv6 Request----->|                        |
       |                         |                        |
       |<------DHCPv6 Reply------o                        |
       |     (OPTION_V6_DNR)     |                        |
       |                         |                        |

                DHCPv6                     RADIUS