+----------------+
                     |     Router     |
                     +----------------+
                              |  192.168.1.1
                              |
                        p3p1  |  192.168.1.2
                     +----------------+
                     |    Firewall    |
                     +----------------+
                        p5p1  |  10.0.0.1
                              |
                              |  10.0.0.100 - 10.0.0.240
                     +----------------+
                     |     Switch     |
                     +----------------+
                              |
          +-------------------+-------------------+
          |                   |                   |
 +----------------+  +----------------+  +----------------+
 |    Computer    |  |    Computer    |  |    Computer    |
 +----------------+  +----------------+  +----------------+