Dev                                               App
+----------------+                               +----+ +----+ +----+
| App1 App2 App3 |                               |App1| |App2| |App3|
|                |                               |    | |    | |    |
|       UDP      |                               |UDP | |UDP | |UDP |
|      IPv6      |                               |IPv6| |IPv6| |IPv6|
|                |                               |    | |    | |    |
|SCHC C/D and F/R|                               |    | |    | |    |
+--------+-------+                               +----+ +----+ +----+
         |  +---+     +---+    +----+    +----+    .      .      .
         +~ |RGW| === |NGW| == |SCHC| == |SCHC|..... Internet ....
            +---+     +---+    |F/R |    |C/D |
                               +----+    +----+