Static DHCP
When any of the LAN clients in your network want an assigned fixed IP address, add a static lease for each LAN client. Knowing the LAN client’s MAC addresses is necessary. This table allows you to assign IP addresses on the LAN to individual computers based on their MAC addresses.
Every Ethernet device has a unique MAC (Media Access Control) address. The MAC address is assigned at the factory and consists of six pairs of hexadecimal characters, for example, 00:A0:C5:00:00:02.
Before You Begin
Find out the MAC addresses of your network devices if you intend to add them to the Static DHCP screen.
Use this screen to change your Zyxel Device’s static DHCP settings. Click Network Setting > Home Networking > Static DHCP to open the following screen.
Network Setting > Home Networking > Static DHCP
The following table describes the labels in this screen.
Network Setting > Home Networking > Static DHCP 
Label
Description
Static DHCP Configuration
Click this to configure a static DHCP entry.
#
This is the index number of the entry.
Status
This field displays whether the client is connected to the Zyxel Device.
MAC Address
The MAC (Media Access Control) or Ethernet address on a LAN (Local Area Network) is unique to your computer (six pairs of hexadecimal notation).
A network interface card such as an Ethernet adapter has a hardwired address that is assigned at the factory. This address follows an industry standard that ensures no other adapter has a similar address.
IP Address
This field displays the IP address relative to the # field listed above.
Modify
Click the Edit icon to configure the connection.
Click the Delete icon to remove the connection.
If you click Static DHCP Configuration in the Static DHCP screen, the following screen displays. Using a static DHCP means a LAN client will always have the same IP address assigned to it by the DHCP server. Assign a fixed IP address to a client device by selecting the interface group of this client device and its IP address type and selecting the device/computer from a list or manually entering its MAC address and assigned IP address.
Network Setting > Home Networking > Static DHCP: Static DHCP Configuration
The following table describes the labels in this screen.
Network Setting > Home Networking > Static DHCP: Static DHCP Configuration 
Label
Description
Active
Select Enable to activate static DHCP in your Zyxel Device.
Group Name
Select the interface group for which you want to configure the static DHCP settings.
IP Type
The IP Type is normally IPv4 (non-configurable).
Select Device Info
Select between Manual Input which allows you to enter the next two fields (MAC Address and IP Address); or select an existing LAN device to show its MAC address and IP address.
MAC Address
Enter the MAC address of a computer on your LAN if you select Manual Input in the previous field.
IP Address
Enter the IP address that you want to assign to the computer on your LAN with the MAC address that you will also specify if you select Manual Input in the previous field.
OK
Click OK to save your changes.
Cancel
Click Cancel to exit this screen without saving.