IAD SERIES USERS MANUAL
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Figure4- 12 DHCP RELAY Configuration
DHCP Service: Select "DHCP RELAY" to open page shown in Figure5-11. If the DHCP client and
DHCP server are not on the same physical segment, the DCHP Relay Agent (Relay Agent) is required.
In this case, the LAN acts as a DHCP RELAY proxy to communicate with DHCP servers on other
subnets to allocate IP addresses to DHCP clients.
DHCP RELAY Configuration Description
：
Table 4- 3 DHCP RELAY Configuration
4.2 Advanced options
Advanced options include DDNS Settings, static routing, dynamic routing, DNS Relay Settings,
NAT, port mapping, virtual domain names, ALG, network usb flash drives, local subinterfaces, and
multicast Settings.
4.2.1 DDNS Settings
The resolution between fixed domain name and dynamic IP address is realized. When the IP address of
WAN port changes, this product will automatically initiate an update request to the designated DDNS server, and
DDNS server will update the corresponding relationship between domain name and IP. Select "advanced
options >DDNS" and enter the "DDNS Settings" page as shown in figure 4-13.
Item
Description
Server side IP
Address
IP address of DHCP server connected
Server side interface
The interface that connect DHCP RELAY with
DHCP server