+----------------------------------------------------+
  |                                                    |
+-+-+         +--+         +--+         +--+         +-+-+
|iPE+-------->+R2+-------->+R3+-------->+R4+-------->+ePE|
| R1|         +--+         +--+         +--+         |R5 |
+-+-+ +-----+      +-----+      +-----+      +-----+ +-+-+
  |   |IPv6 |      |IPv6 |      |IPv6 |      |IPv6 |   |
  |   |DA=R3|      |DA=R3|      |DA=R5|      |DA=R5|   |
  |   +-----+      +-----+      +-----+      +-----+   |
  |   | SRH |      | SRH |      | IP  |      | IP  |   |
  |   |SL=1 |      |SL=1 |      +-----+      +-----+   |
  |   | R5  |      | R5  |                             |
  |   +-----+      +-----+                             |
  |   | IP  |      | IP  |                             |
  |   +-----+      +-----+                             |
  |                                                    |
  +----------------------------------------------------+