ZyXEL p-334wh Guia Do Utilizador

P-334WH User’s Guide

Chapter 9 DHCP Server

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The following table describes the labels in this screen.

Table 47   DHCP Server Advanced

#

This is the index number of the static IP table entry (row).

MAC Address

Type the MAC address (with colons) of a computer on your LAN.

IP Address

Type the LAN IP address of a computer on your LAN.

DNS Servers Assigned by DHCP Server 
The ZyXEL Device passes a DNS (Domain Name System) server IP address (in the order you specify 

here) to the DHCP clients. The ZyXEL Device only passes this information to the LAN DHCP clients 

when you select the Enable DHCP Server check box. When you clear the Enable DHCP Server check 

box, DHCP service is disabled and you must have another DHCP sever on your LAN, or else the 

computers must have their DNS server addresses manually configured.

First DNS Server
Second DNS Server
Third DNS Server 

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

the ZyXEL Device'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 ZyXEL Device act as a DNS proxy. The ZyXEL 

Device's LAN IP address displays in the field to the right (read-only). The ZyXEL 

Device tells the DHCP clients on the LAN that the ZyXEL Device itself is the DNS 

server. When a computer on the LAN sends a DNS query to the ZyXEL Device, 

the ZyXEL Device forwards the query to the ZyXEL Device'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 ZyXEL Device.

Reset

Click Reset to begin configuring this screen afresh.

The DHCP table shows current DHCP client information (including IP Address, Host Name 
and MAC Address) of all network clients using the ZyXEL Device’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. 

Note: You can also view a read-only client list by clicking the DHCP Table (Details...) 

hyperlink in the Status screen. 

The following screen displays.