CE                             BNG                     AAA Server
|                               |                               |
|-------1.DHCPv6 Solicit------->|                               |
|(ORO with unicast and/or       |                               |
|    multicast container option |                               |
|    codes(s))                  |                               |
|                               |-------2.Access-Request------->|
|                               |   (Softwire46-Configuration   |
|                               |       Attribute and/or        |
|                               |Softwire46-Multicast Attribute)|
|                               |                               |
|                               |<------3.Access-Accept---------|
|                               |   (Softwire46-Configuration   |
|                               |       Attribute and/or        |
|                               |Softwire46-Multicast Attribute)|
|                               |                               |
|<----4.DHCPv6 Advertisement----|                               |
|     (container option(s))     |                               |
|                               |                               |
|-------5.DHCPv6  Request------>|                               |
|     (container option(s))     |                               |
|                               |                               |
|<--------6.DHCPv6 Reply--------|                               |
|     (container option(s))     |                               |
|                               |                               |
             DHCPv6                         RADIUS