ZyXEL NBG-318S Guia Do Utilizador

 Chapter 9 DHCP

NBG-318S User’s Guide

The DHCP table shows current DHCP client information (including IP Address, Host Name 
and MAC Address) of all network clients using the NBG-318S’s DHCP server.
Configure this screen to always assign an IP address to a MAC address (and host name). Click 
Network > DHCP Server > Client List. 

"

You can also view a read-only client list by clicking the DHCP Table 
(Details...) hyperlink in the Status screen. 

The following screen displays.

Figure 62   Network > DHCP Server > Client List   

First DNS Server
Second DNS 

Server
Third DNS Server 

Select From ISP if your ISP dynamically assigns DNS server information (and 

the NBG-318S'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 NBG-318S act as a DNS proxy. The NBG-318S's 

LAN IP address displays in the field to the right (read-only). The NBG-318S tells 

the DHCP clients on the LAN that the NBG-318S itself is the DNS server. When 

a computer on the LAN sends a DNS query to the NBG-318S, the NBG-318S 

forwards the query to the NBG-318S'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 NBG-318S.

Reset

Click Reset to begin configuring this screen afresh.

Table 43   Network > DHCP Server > Advanced