ZyXEL Communications Corporation NBG417N 用户手册
Chapter 10 DHCP Server
User
’s Guide
122
10.4 Client List
The DHCP table shows current DHCP client information (including IP Address,
Host Name and MAC Address) of network clients using the NBG4115’s DHCP
servers.
Host Name and MAC Address) of network clients using the NBG4115’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.
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.
First DNS Server
Second DNS
Server
Server
Select From ISP if your ISP dynamically assigns DNS server
information (and the NBG4115's WAN IP address). The field to the
information (and the NBG4115's WAN IP address). The field to the
right displays the (read-only) DNS server IP address that the ISP
assigns.
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
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.
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 NBG4115 act as a DNS proxy. The
NBG4115's LAN IP address displays in the field to the right (read-
only). The NBG4115 tells the DHCP clients on the LAN that the
NBG4115 itself is the DNS server. When a computer on the LAN sends
a DNS query to the NBG4115, the NBG4115 forwards the query to the
NBG4115'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
only). The NBG4115 tells the DHCP clients on the LAN that the
NBG4115 itself is the DNS server. When a computer on the LAN sends
a DNS query to the NBG4115, the NBG4115 forwards the query to the
NBG4115'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.
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
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 NBG4115.
Reset
Click Reset to begin configuring this screen afresh.
Table 43 Network > DHCP Server > Advanced
LABEL
DESCRIPTION
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