Grandstream Networks GWN76 Series User Manual page 89

DHCP Relay is a network device that forwards IP addresses from the DHCP Server to clients devices, even if the DHCP server is
on a different network (ex: VLAN). This way we can have a dedicate DHCP server on many networks. GWN access points can
be configured as a DHCP relay agent. please follow the steps below:
Prerequisite: before configuring DHCP Relay, first we have to assign a static IP address to both devices that will be acting as a
DHCP Server and DHCP Relay in our case it's two GWN76xx Access Points.
1. The first step in our example is make a GWN access point as a DHCP Server, please refer to
2. Navigate to Web UI → Access Points → Configuration, click on the access point or click on the "Edit" icon, then the
device configuration window will show up. Set a static IP for both access points (one acting as a DHCP Server and the
other one as a DHCP Relay), please refer to the figure below.
3. To configure DHCP Relay, please navigate to GWN access point Web UI → Service → DHCP Server → DHCP Relay tab,
Then enable DHCP Relay and then enter the DHCP Server Address (ex: GWN access point).
Note:
a router side configuration could be required to setup VLANs for both access points to be able to communicate.
Setting up a static IP
DHCP Relay
DHCP Server configuration.