TP-LINK TD-8817B User Manual

Page of 59
TD-8817B
ADSL2+ Modem Router User Guide
 
27 
¾
  DHCP Relay: Select Relay, then you will see the next screen (shown in Figure 4-13), the 
Router will work as a DHCP Relay. A DHCP relay is a computer that forwards DHCP data 
between computers that request IP addresses and the DHCP server that assigns the 
addresses. Each of the device's interfaces can be configured as a DHCP relay. If it is enabled, 
the DHCP requests from local PCs will forward to the DHCP server runs on WAN side. To 
have this function working properly, please run on router mode only, disable the DHCP server 
on the LAN port, and make sure the routing table has the correct routing entry. 
 
Figure 4-13 
• 
DHCP Server IP for Relay Agent: Enter the DHCP server IP Address runs on WAN 
side. 
)
 
Note: 
f you select Disabled, the DHCP function will not take effect. 
I
 
4.4  Advanced Setup 
Choose “Advanced Setup”, you can see the next submenus: 
 
Figure 4-14 
Click any of them, and you will be able to configure the corresponding function. 
4.4.1  Firewall 
Choose “Advanced SetupFirewall” menu, and you will see the next screen (shown in Figure 
 
Figure 4-15