Configure Dhcp; Add Devices To Your Static Dhcp List - ZyXEL Communications LTE Series User Manual

4.12 Configure DHCP

You can enable the DHCP (Dynamic Host Configuration Protocol) in your Zyxel Device to assign IP
addresses and DNS servers to systems that support DHCP client capability. DHCP allows clients to obtain
TCP/IP configuration at start-up from a server.
The following figure shows how Client A uses DHCP to join the Zyxel Device's network. First Client A
searches for an available DHCP, and sends a DHCP Discover broadcast message asking for an IP
address to connect to. Then the DHCP selects an IP address from its pool of IP addresses for Client A. The
DHCP sends a DHCP Offer including the IP address selected and a lease time, which is the period of time
Client A will be able to use this IP address, After Client A has received DHCP offers for an IP address, it
chooses one and sends out a DHCP Request including the IP address it chose. Finally the DHCP confirms
through a DHCP Ack (Acknowledge) message that the host can use the IP address for the previously
specified lease time.
To configure the DHCP in your Zyxel Device:
Log into the Zyxel Device's Web Configurator.
1
Click Network Setting > Home Networking > LAN Setup.
2
Select Enable DHCP Server State.
3
Enter a range of addresses from which your DHCP will assign to devices in your network.
4
Note: Do not include the Zyxel Device's LAN IP address in your range of addresses.
Type the DHCP Server Lease Time, the period of time (in minutes) a device can use one of the IP
5
addresses from the DHCP pool. The lease time helps recycle unused IP addresses so that other can use
them again. Click Apply.

4.12.1 Add Devices to Your Static DHCP List

IP addresses from the DHCP pool can be reused after they have completed their lease time. Add your
devices to your Static DHCP List so they have the same IP address everytime they connect to your
network.
To add a device to your Static DHCP List:
Log into the Zyxel Device's Web Configurator.
1
Go to Network Setting > Home Networking > Static DHCP screen.
2
Chapter 4 Tutorials
LTE Series User's Guide
64