Netgear N600 Wireless Router User Manual

Security Settings51
 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700
3. 
Your router creates an entry in its internal session table describing th\
is communication 
session between your computer and the web server at www.example.com. Bef\
ore sending 
the web page request message to www.example.com, your router stores the \
original 
information and then modifies the source information in the request mess\
age, performing 
Network Address Translation (NAT):
•     The source address is...

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N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 
triggering function of your router, you can tell the router to open addi\
tional incoming ports 
when a particular outgoing port originates a session.
An example is Internet Relay Chat (IRC). Your computer connects to an \
IRC server at  destination port 6667. The IRC server not only responds to your originat\
ing source port, but 
also sends an “identify” message to your computer on port 113. Usi\
ng port triggering, you...

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Port Forwarding to Permit External Host Communications
In both of the preceding examples, your computer initiates an applicatio\
n session with a 
server computer on the Internet. However, you might need to allow a clie\
nt computer on the 
Internet to initiate a connection to a server computer on your network. \
Normally, your router 
ignores any inbound traffic that is not a response to your own outbound \
traffic. You...

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N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 
•     Port triggering can be used by any computer on your network, although on\
ly one 
computer can use it at a time.
•     Port forwarding is configured for a single computer on your network.
•     Port triggering does not need to know the computer’s IP address in ad\
vance. The IP  address is captured automatically.
•      Port forwarding requires that you specify the computer’s IP address d\
uring configuration, 
and...

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4. 
In the corresponding Server IP Address field, enter the last digit of th\
e IP address of your 
local computer that will provide this service. 
5.  Click  Add. The service appears in the list in the screen.
Add a Custom Service
To define a service, game, or application that does not appear in the Se\
rvice Name list, you 
have to first determine which port number or range of numbers is used by\
 the application. 
You...

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To make a local web server public:
1. 
Assign your web server either a fixed IP address or a dynamic IP address\
 using DHCP 
address reservation. In this example, your router will always give your \
web server an IP 
address of 192.168.1.33. 
2.  In the Port Forwarding screen, configure the router to forward the HTTP \
service to the local 
address of your web server at 192.168.1.33. HTTP (port 80) is the standard...

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 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700
2. 
Select the Port Triggering radio button to display the port triggering information.
Figure 24.  Set up port triggering
3. Clear the Disable Port Triggering check box.
Note:   If the Disable Port Triggering check box is selected after you 
configure port triggering, port triggering is disabled. However, any 
port triggering configuration information you added to the router is 
retained even though it is not used.
4.  In...

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N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 
10. 
Enter the inbound connection port information in the  Connection Type, Starting Port, and 
Ending Port  fields.
11.  Click  Apply . The service appears in the Port Triggering Portmap table. 
Configure Services
Services are functions performed by server computers at the request of c\
lient computers. For 
example, web servers serve web pages, time servers serve time and date i\
nformation, and 
game hosts serve data...

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•     
Type. Select the correct type for this service. If in doubt, select  TCP/UDP. The options 
are TCP, UDP, TCP/UDP.
•     Start Port and End Port. If a port range is required, enter the range here. If a single  port is required, enter the same value in both fields.
3.  Click  Apply to save your changes.
Set the Time Zone
The wireless modem router uses the Network Time Protocol (NTP) to obta\
in the current time 
and...

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Schedule Firewall Services
If you enabled services blocking in the Block Services screen or port fo\
rwarding in the Port 
Forwarding/Port Triggering screen, you can set up a schedule for when bl\
ocking occurs or 
when access is not restricted. 
To schedule firewall services:
1. 
Select  Content Filtering > Schedule  to display the following screen:
Figure 29.  Schedule screen
2. To block Internet services based on a...