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Administration Guide

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DHCP monitor

The DHCP monitor displays all the addresses leased out by FortiGate's DHCP servers. You can use the monitor to revoke an address for a device, or create, edit, and delete address reservations.

To view the DHCP monitor in the GUI:
  1. Go to Dashboard > Network.
  2. Hover over the DHCP widget, and click Expand to Full Screen.
Tooltip

To filter or configure a column in the table, hover over the column heading and click Filter/Configure Column.

To revoke a lease:
  1. Select a device in the table.
  2. In the toolbar, click Revoke, or right-click the device, and click Revoke. The Confirm window opens.
  3. Click OK.
Note

A confirmation window opens only if there is an associated address reservation. If there is no address, the lease will be removed immediately upon clicking Revoke.

To create a DHCP reservation:
  1. Select a server in the table.
  2. In the toolbar, click Reservation, or right-click the device and click Create DHCP Reservation. The Create New DHCP Reservation window opens.
  3. Configure the DHCP settings.
  4. Click OK.
To view top sources by bytes:
  1. Right-click a device in the table and click Show in FortiView. The Top Sources by Bytes widget opens.
To view the DHCP lease list in the CLI:

# exec dhcp lease-list

DHCP monitor

The DHCP monitor displays all the addresses leased out by FortiGate's DHCP servers. You can use the monitor to revoke an address for a device, or create, edit, and delete address reservations.

To view the DHCP monitor in the GUI:
  1. Go to Dashboard > Network.
  2. Hover over the DHCP widget, and click Expand to Full Screen.
Tooltip

To filter or configure a column in the table, hover over the column heading and click Filter/Configure Column.

To revoke a lease:
  1. Select a device in the table.
  2. In the toolbar, click Revoke, or right-click the device, and click Revoke. The Confirm window opens.
  3. Click OK.
Note

A confirmation window opens only if there is an associated address reservation. If there is no address, the lease will be removed immediately upon clicking Revoke.

To create a DHCP reservation:
  1. Select a server in the table.
  2. In the toolbar, click Reservation, or right-click the device and click Create DHCP Reservation. The Create New DHCP Reservation window opens.
  3. Configure the DHCP settings.
  4. Click OK.
To view top sources by bytes:
  1. Right-click a device in the table and click Show in FortiView. The Top Sources by Bytes widget opens.
To view the DHCP lease list in the CLI:

# exec dhcp lease-list