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Barracuda CloudGen WAN

How to Configure DHCP to Assign IP Addresses Only to Known MAC Addresses

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Barracuda CloudGen WAN can be configured to allow only clients with known MAC addresses to use the DHCP service of the site appliance.  If a device has already received an IP address through the DHCP service, it will keep this IP address until the lease time is expired. For more information on the configuration of the lease time, see How to Enable the DHCP Service on a Site Device .

Before You Begin

Enable Only Allow Known MAC Addresses

  1. Open https://cloudgenwan.barracudanetworks.com/ in your web browser  and log in with your existing Barracuda Cloud Control account.
  2. At the top, select the virtual WAN where the site is connected to.
    select_vwan821.png
  3. Click SITES.
  4. Select the site you want to edit.  You can either search for the name or serial, or use filters to tailor the list of displayed sites. You can also simply scroll through the list.
  5. Click on the arrow icon next to site you want to edit.
    edit_site821.png
  6. In the site menu, go to SETTINGS > DHCP.
    DHCP821.png
  7. In the DHCP RESERVATIONS section, enable Only Allow Known MAC Addresses
    enable.png
  8. Click SAVE.

Only clients that are listed in the DHCP RESERVATIONS table can use the DHCP service.

Next Step


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