Network
  Resource         CPE Router        Access Network     __________
+-----------+   +--------------+    +-------------+    /          \
|           |___|              |____|             |___ | Internet |
|DOTS Client|   | DOTS Gateway |    | DOTS Server |    |          |
|           |   |              |    |             |    |          |
+-----------+   +--------------+    +-------------+    \__________/