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Page 96 / 244 Scroll up to view Page 91 - 95
Chapter 10 DHCP Server
NBG-416N User’s Guide
96
10.4
General Screen
Use this screen to enable the DHCP server. Click
Network
>
DHCP Server
.
The
following screen displays.
Figure 56
Network > DHCP Server > General
The following table describes the labels in this screen.
10.5
Advanced Screen
This screen allows you to assign IP addresses on the LAN to specific individual
computers based on their MAC addresses. You can also use this screen to
configure the DNS server information that the NBG-416N sends to the DHCP
clients.
Table 37
Network > DHCP Server > General
LABEL
DESCRIPTION
Enable DHCP
Server
Enable or Disable DHCP for LAN.
DHCP (Dynamic Host Configuration Protocol, RFC 2131 and RFC
2132) allows individual clients (computers) to obtain TCP/IP
configuration at startup from a server. Leave the
Enable DHCP
Server
check box selected unless your ISP instructs you to do
otherwise. Clear it to disable the NBG-416N acting as a DHCP
server. When configured as a server, the NBG-416N provides TCP/IP
configuration for the clients. If not, DHCP service is disabled and
you must have another DHCP server on your LAN, or else the
computers must be manually configured. When set as a server, fill in
the following four fields.
IP Pool Starting
Address
This field specifies the first of the contiguous addresses in the IP
address pool for LAN.
Pool Size
This field specifies the size, or count of the IP address pool for LAN.
Apply
Click
Apply
to save your changes back to the NBG-416N.
Reset
Click
Reset
to begin configuring this screen afresh.
Page 97 / 244
Chapter 10 DHCP Server
NBG-416N User’s Guide
97
To change your NBG-416N’s static DHCP settings, click
Network
>
DHCP Server
>
Advanced
. The following screen displays.
Figure 57
Network > DHCP Server > Advanced
The following table describes the labels in this screen.
Table 38
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
The NBG-416N 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.
Page 98 / 244
Chapter 10 DHCP Server
NBG-416N User’s Guide
98
10.6
Client List Screen
The DHCP table shows current DHCP client information (including
IP Address
,
Host
Name
and
MAC Address
) of network clients using the NBG-416N’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 the
DHCP Table (Details...)
hyperlink in the
Status
screen.
The following screen displays.
Figure 58
Network > DHCP Server > Client List
First DNS Server
Second DNS
Server
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-416N act as a DNS proxy. The
NBG-416N's LAN IP address displays in the field to the right (read-
only). The NBG-416N tells the DHCP clients on the LAN that the NBG-
416N itself is the DNS server. When a computer on the LAN sends a
DNS query to the NBG-416N, the NBG-416N forwards the query to the
NBG-416N'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-416N.
Reset
Click
Reset
to begin configuring this screen afresh.
Table 38
Network > DHCP Server > Advanced (continued)
LABEL
DESCRIPTION
Page 99 / 244
Chapter 10 DHCP Server
NBG-416N User’s Guide
99
The following table describes the labels in this screen.
Table 39
Network > DHCP Server > Client List
LABEL
DESCRIPTION
#
This is the index number of the host computer.
IP Address
This field displays the IP address relative to the # field listed above.
Host Name
This field displays the computer host name.
MAC Address
The MAC (Media Access Control) or Ethernet address on a LAN
(Local Area Network) is unique to your computer (six pairs of
hexadecimal notation).
A network interface card such as an Ethernet adapter has a
hardwired address that is assigned at the factory. This address
follows an industry standard that ensures no other adapter has a
similar address.
Reserve
Select this check box in the
DHCP Setup
section to have the NBG-
416N always assign the IP address(es) to the MAC address(es) (and
host name(s)). After you click
Apply
, the MAC address and IP
address also display in the
Advanced
screen (where you can edit
them).
Apply
Click
Apply
to save your settings.
Refresh
Click
Refresh
to reload the DHCP table.
Page 100 / 244
Chapter 10 DHCP Server
NBG-416N User’s Guide
100

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