+----------------------------------+
|       Enterprise Network         |
| +----------+        +----------+ |       +----------+
| |   IPv6-  |        |  NAT64   | |       |   IPv4   |
| |   only   +--------+    +     | +-------+     +    |
| |   LANs   |        |  DNS64   | |       |   IPv6   |
| +----------+        +----------+ |       +----------+
+----------------------------------+