ZyXEL Communications Corporation EMG2926Q10A Manuel D’Utilisation

Chapter 13 DHCP Server

EMG2926-Q10A User’s Guide

The DHCP table shows current DHCP client information (including IP Address, Host Name and MAC 
Address) of network clients using the EMG2926-Q10A’s DHCP servers.

Configure this screen to always assign an IP address to a MAC address (and host name). Click 
Network > DHCP Server > Client List. 

Note: You can also view a read-only client list by clicking Monitor > DHCP Server. 

Network > DHCP Server > Client List

The following table describes the labels in this screen.

First DNS Server

Second DNS Server 

Third DNS Server

Select Obtained From ISP if your ISP dynamically assigns DNS server information 
(and the EMG2926-Q10A's WAN IP address). The field to the right displays the (read-
only) DNS server IP address that the ISP assigns. 

Select User-Defined if you have the IP address of a DNS server. Enter the DNS server's 
IP address in the field to the right. If you chose User-Defined, but leave the IP address 
set to 0.0.0.0, User-Defined changes to None after you click Apply. If you set a 
second choice to User-Defined, and enter the same IP address, the second User-
Defined changes to None after you click Apply. 

Select DNS Relay to have the EMG2926-Q10A act as a DNS proxy. The EMG2926-
Q10A's LAN IP address displays in the field to the right (read-only). The EMG2926-Q10A 
tells the DHCP clients on the LAN that the EMG2926-Q10A itself is the DNS server. When 
a computer on the LAN sends a DNS query to the EMG2926-Q10A, the EMG2926-Q10A 
forwards the query to the EMG2926-Q10A's system DNS server (configured in the WAN 
> Internet Connection screen) and relays the response back to the computer. You can 
only select DNS Relay for one of the three servers; if you select DNS Relay for a 
second or third DNS server, that choice changes to None after you click Apply. 

Select None if you do not want to configure DNS servers. If you do not configure a DNS 
server, you must know the IP address of a computer in order to access it.

Apply

Click Apply to save your changes back to the EMG2926-Q10A.

Cancel

Click Cancel to begin configuring this screen afresh.

Network > DHCP Server > Advanced (continued)

Network > DHCP Server > Client List

# 

This is the index number of the host computer.

Status

This field displays whether the connection to the host computer is up (a yellow bulb) or 
down (a gray bulb).