Справочник Пользователя для Wellink Corporation W202ER-4

Some ISPs perform the DHCP server function for their customers’ 
home/small office networks. In this case, you can configure the 
device as a DHCP relay agent. When a computer on your network 
requests Internet access, the VisionNet 202ER-4 contacts your ISP 
to obtain an IP address (and other information), and then forwards 
that information to the computer. 

First, you must configure your PCs to accept DHCP information 
assigned by a DHCP server: 

1.  Open the Windows Control Panel and display the computer's 

Networking properties. Configure the TCP/IP properties to 
"Obtain an IP address automatically" (the actual text may 
vary depending on your operating system). For detailed 
instructions, see the Quick Start chapter, “Part 2 — 
Configuring Your Computers.” 

Next, you specify the IP address of the DHCP server and select the 
interfaces on your network that will be using the relay service. 

2. Launch 

the 

Configuration Manager, click 

 in the 

LAN tab. 

The DHCP Relay Configuration page displays: 

 

 

3.  Type the IP address of your ISP’s DHCP server in the fields 

provided. 

If you do not have this number, it is not essential to enter it here. 
Requests for IP information from your LAN will be passed to the 
default gateway, which should route the request appropriately. 

4.  If the interface named eth-0 is not already displaying, select 

it from the drop-down list and click 

. 

The eth-0 interface specifies that your default Ethernet (LAN) 
interface is running DHCP relay for your LAN. Typically, this is 
the only interface you need to specify here. If the VisionNet 
202ER-4 has additional interfaces that you want to perform 
DHCP relay, you can select and add them. 

(You can also delete an interface from the table by clicking   
in the right column.) 

5. Click 

.