+----------+                                        +----------+
                 | COMPUTER |                                        | COMPUTER |
                 +----------+                                        +----------+
                     |                                                    |
                     | wireless lan                                       | ethernet
                     |                                                    |
+--------+ adsl  +----------+ wireless lan  +----------+ ethernet +-------------+
|INTERNET|-------|ADSL MODEM|---------------| COMPUTER |----------| ETH. SWITCH |
+--------+       +----------+               +----------+          +-------------+
                     |                                                    |
                     | wireless lan                                       | ethernet
                     |                                                    |
                 +----------+                                        +----------+
                 | COMPUTER |                                        | THIS ONE |
                 +----------+                                        +----------+