Network                                          DDoS Mitigation
   Resource          CPE Router        _________        Service
+-------------+   +--------------+    /         \   +-------------+
|             |   |              |   |          |   |             |
| DOTS Client +---+ DOTS Gateway +---+ Internet +---+ DOTS Server |
|             |   |              |   |          |   |             |
+-------------+   +--------------+    \_________/   +-------------+