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Page 41 / 59 Scroll up to view Page 36 - 40
Advanced Settings
41
NETGEAR DOCSIS 3.0 N450 Wi-Fi Data Gateway
•
To delete a service, select the radio button in the Active Forwarding Rules table for
the service that you want to delete, and click
Delete
.
•
To reset the selection in the Service list and to clear all the fields in the Add Custom
Rules, click
Reset
.
Port T
riggering
Port triggering is an advanced feature that you can use to allow gaming and other Internet
applications that the firewall would otherwise block. You must know the port numbers the
application uses. Port triggering operates as follows:
1.
A computer makes an outgoing connection using a port number defined in the Port
Triggering table.
2.
The gateway records this connection, opens the incoming port or ports associated with this
entry in the Port Triggering List, and associates them with the computer.
3.
The remote system receives the computer’s request, and responds using a different port
number.
4.
The gateway matches the response to the previous request, and forwards the response to
the computer. (Without port triggering, this response would be treated as a new connection
request rather than a response. As such, it would be handled in accordance with the port
forwarding rules.)
Note:
Only one computer at a time can use port triggering. After a
computer finishes using a port triggering application, there is a short
time-out period before another computer can use the application.
To configure port triggering:
1.
In the main menu, under Advanced, select
Port Triggering
.
Page 42 / 59
Advanced Settings
42
NETGEAR DOCSIS 3.0 N450 Wi-Fi Data Gateway
2.
For each port trigger, enter the settings in the Port
Triggering List:
•
Trigger Range
. To specify the range of
outgoing ports that are monitored to trigger
the incoming port forwarding rule, enter the
start port and end port.
•
Target Range
. To specify the range of
incoming ports that are opened when
triggered, enter the start port and end port.
•
Protocol
. Select the protocol for the ports:
-
TCP
. Select TCP only.
-
UDP
. Select UDP only.
-
Both
. Select both TCP and UDP.
3.
Select the
Enable
check box for the port trigger.
4.
Perform one of the following actions:
•
Click
Apply
to save your settings and
activate the port triggers.
•
To remove a port trigger, select its radio button, and click
Delete
.
•
To return all trigger and target ranges to zero, click
Reset
.
DMZ Host
You can use the DMZ Host screen to set up a default DMZ computer. Specifying a default
DMZ computer allows you to set up a computer that is available to anyone on the Internet for
services that you have not defined. To minimize security risks, set up the DMZ host only if
you are willing to risk open access. If you do not define a DMZ host, the gateway discards
any undefined service requests.
To set up a DMZ host:
1.
In the main menu, under Advanced, select
DMZ Host
.
2.
Select the
Respond to Ping on WAN Port
check box.
When you select this check box, the gateway, not the DMZ computer, responds to a ping
request.
Page 43 / 59
Advanced Settings
43
NETGEAR DOCSIS 3.0 N450 Wi-Fi Data Gateway
For example, some systems tracking the performance of the broadband connections in
terms of latency and packet loss need the gateway to reply to ping requests.
3.
Type the last digits of the IP address in the DMZ Address field.
The DMZ host feature is disabled when the last digit is zero.
4.
Click
Apply
.
LAN IP Setup
The LAN IP screen allows you to configure LAN services such as the IP address of the
gateway and DHCP. The TCP/IP and DHCP default values work fine in most cases.
Note:
If you disable the DHCP server, assign to your computer a static IP
address to reconnect to the gateway and enable the DHCP server
again.
To configure LAN IP settings:
1.
In the main menu, under Advanced, select
LAN IP
.
2.
Specify these settings:
•
LAN IP Address
. The factory default
setting is 192.168.0.1.
•
Subnet Mask
. The network number
portion of an IP address. Unless you
are implementing subnetting, use
255.255.255.0 as the subnet mask.
•
DHCP Server
. The
Yes
radio button is
selected by default so the gateway acts
as a DHCP server, providing the
TCP/IP configuration for all the
computers connected to it.
If you plan to assign IP addresses
manually, or you have another DHCP
server on your network, select the
No
radio button.
•
Starting IP Address
and
Ending IP
Address
. These fields specify the
range in the IP address pool.
•
Max Users
. The maximum number of
users on the network.
Page 44 / 59
Advanced Settings
44
NETGEAR DOCSIS 3.0 N450 Wi-Fi Data Gateway
•
DHCP Lease
. For more information, see the following section,
Reserve an IP Address
for DHCP Use
.
3.
Click
Apply
.
Reserve an IP
Address for DHCP Use
To reserve an IP address for DHCP use, enter the DHCP server reservation settings for the
private LAN under DHCP Reservation Lease Info in the LAN IP screen.
To reserve an IP address for DHCP:
1.
In the main menu, under Advanced, select
LAN IP
.
2.
In the DHCP Reservation Lease Info section, enter the MAC address of the computer for
which you want to reserve an IP address.
3.
Enter the permanent IP address for the computer.
4.
Click
Add
to save your settings.
The MAC address and IP address are displayed in the DHCP Client Lease Info table. The
current system time is also displayed.
To delete an IP address from the DHCP Client Lease Info table:
1.
In the DHCP Client Lease Info table, select the radio button for the MAC and IP address
that you want to remove.
2.
Click
Delete.
The information for the selected MAC and IP address is removed from the DHCP Client
Lease Info table.
To remove all information from the DHCP Client Lease Info table, click
Clear DHCP
Leases
.
LAN Switch
The gateway’s LAN interference is a 10/100/1GBASE-T Ethernet switch. The switch ports
are set to automatically negotiate speed and duplex communication with any connected
device. You might want to configure the port if the devices do not auto-negotiate correctly.
Page 45 / 59
Advanced Settings
45
NETGEAR DOCSIS 3.0 N450 Wi-Fi Data Gateway
To configure the switch ports:
1.
In the main menu, under Advanced, select
LAN Switch
.
2.
For each port, select the appropriate speed and duplex setting.
3.
Click
Apply
.
To disable a LAN port:
1.
In the main menu, under Advanced, select
LAN Switch
.
2.
In the Auto column corresponding to the port you want to disable, clear the check box.
3.
Click
Apply
.
Configure Universal Plug and Play (UPnP)
Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers,
access the network and connect to other devices as needed. UPnP devices can
automatically discover the services from other registered UPnP devices on the network. With
UPnP, you can specify the following:
•
Advertisement period
. Specifies how often the gateway broadcasts its UPnP
information. The default is 30 minutes. Lower numbers ensure that control points
have current device status at the expense of more network traffic. Larger numbers
compromise the freshness of the device status but can significantly reduce network
traffic.
•
Advertisement time to live
. The time to live for the advertisement, measured in hops
(steps) for each UPnP packet that is sent. Hops are the steps a packet takes between
routers. The number of hops can range from 1 to 255. The default value for the
advertisement time to live is four hops, which should be fine for most home networks.
If you notice that some devices are not being updated or reached correctly, you might
need to increase this value slightly.
To configure UPnP:
1.
In the main menu, under Advanced, select
UPnP
.
2.
Select the
Turn UPnP On
check box.

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