MN                    AR1           AR2                           CN
  |MN attaches to AR1:  |             |                             |
  |acquires MN-ID and profile         |                             |
  |--RS---------------->|             |                             |
  |                     |             |                             |
  |<----------RA(IP1)---|             |                             |
  |                     |             |                             |
Assigned prefix IP1     |             |                             |
IP1 address configuration             |                             |
  |                     |             |                             |
  |<-Flow(IP1,IPcn,...)-+------------------------------------------>|
  |                     |             |                             |
  |MN detaches from AR1 |             |                             |
  |MN attaches to AR2   |             |                             |
  |                     |             |                             |
  |--RS------------------------------>|                             |
  |                     |             |                             |
  |<--------------RA(IP2)-------------|                             |
  |                     |             |                             |
Assigned prefix IP2     |             |                             |
IP2 address configuration             |                             |
  |                     |             |                             |
  |<-new Flow(IP2,IPcn,...)-----------+---------------------------->|
  |                     |             |                             |