Chapter 14 Managing Devices for FortiOS 5.0 : Managing “bring your own device” : Device monitoring
  
Device monitoring
The FortiGate unit can monitor your networks and gather information about the devices operating on those networks. Collected information includes:
MAC address
IP address
operating system
hostname
user name
how long ago the device was detected and on which FortiGate interface
You can go to User & Device > Device > Device Definitions to view this information.
Device monitoring is enabled separately on each interface. Device detection is intended for devices directly connected to your LAN ports. If enabled on a WAN port, device detection may be unable to determine some devices’ operating system.
To configure device monitoring
1. Go to System > Network > Interfaces.
2. Edit the interface that you want to monitor devices on.
3. In Device Management, select Detect and Identify Devices.
4. Select OK.
5. Repeat steps 2 through 4 for each interface that will monitor devices.
To assign an alias to a detected device or change device information
1. Go to User & Device > Device > Device Definitions.
2. Double-click the device entry or right-click it and select Edit.
3. Enter an Alias such as the user’s name to identify the device.
This is step is compulsory. The alias replaces the MAC address in the device list.
4. Change other information as needed.
5. Select OK.
To add a device manually
1. Go to User & Device > Device > Device Definitions and select Create New.
2. Enter the following information.
Alias (required)
MAC address
Device Type
3. Optionally, select Custom Groups or enter Comments.
4. Select OK.