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Table of Contents

Administration Guide

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DHCP monitor

The DHCP monitor shows 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:
  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 Lease(s). The Confirm page is displayed.
  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 page is displayed.
  3. Configure the DHCP reservation settings.

  4. Click OK.
To view top sources by bytes:
  1. Right-click a device in the table and click Show in FortiView. The FortiView Sources by Bytes widget is displayed.
To view the DHCP lease list in the CLI:
# execute dhcp lease-list

DHCP monitor

The DHCP monitor shows 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:
  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 Lease(s). The Confirm page is displayed.
  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 page is displayed.
  3. Configure the DHCP reservation settings.

  4. Click OK.
To view top sources by bytes:
  1. Right-click a device in the table and click Show in FortiView. The FortiView Sources by Bytes widget is displayed.
To view the DHCP lease list in the CLI:
# execute dhcp lease-list