ZyXEL Communications Corporation NBG418NV2 Manual De Usuario
Chapter 9 DHCP Server
99
Figure 70
Network > DHCP Server > Advanced
The following table describes the labels in this screen.
Table 43
Network > DHCP Server > Advanced
LABEL
DESCRIPTION
Static DHCP Table
#
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 Server
DNS Servers
Assigned by DHCP
Server
Assigned by DHCP
Server
The NBG-418N passes a DNS (Domain Name System) server IP address (in the order
you specify here) to the DHCP clients. If you do not configure the DNS server, the 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.
you specify here) to the DHCP clients. If you do not configure the DNS server, the 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
Select From ISP if your ISP dynamically assigns DNS server information (and the NBG-
418N’s WAN IP address). The field to the right displays the (read-only) DNS server IP
address that the ISP assigns.
418N’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.
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-418N act as a DNS proxy. The NBG-418N's LAN IP
address displays in the field to the right (read-only). The NBG-418N tells the DHCP
clients on the LAN that the NBG-418N itself is the DNS server. When a computer on the
LAN sends a DNS query to the NBG-418N, the NBG-418N forwards the query to the
NBG-418N'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.
address displays in the field to the right (read-only). The NBG-418N tells the DHCP
clients on the LAN that the NBG-418N itself is the DNS server. When a computer on the
LAN sends a DNS query to the NBG-418N, the NBG-418N forwards the query to the
NBG-418N'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.
Apply
Click Apply to save your changes back to the NBG-418N.
Reset
Click Reset to begin configuring this screen afresh.