| Layer
7 |
| L2 L3 L4 |
| URL,
Cookies, Content, Application, User-name, |
| Easier |
| Tougher |
|
|
|
| | Source MAC address is authenticated |
|
| Packet is being sent from
marketing network |
| VP Marketing is accessing
an external web server |
|
|
|
| | Server : yahoo.com identified |
|
| File Type: .mp3, access to
audio file identified |
| File Name:
American_Pie.mp3 |
|
|
|
| | Its
7.00 PM. |
|
|
|
|
| | Allow
the session? Yes. |
|
| 5 |