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Page 76 / 103 Scroll up to view Page 71 - 75
Advanced Settings
76
N150 4-Port Wireless Router JNR1010
Port forwarding creates a static mapping of a port number or range to a single local computer.
Port triggering can dynamically open ports to any computer that needs them and can close
the ports when they are no longer needed.
Note:
If you use applications such as multiplayer gaming, peer-to-peer
connections, real-time communications such as instant messaging,
or remote assistance (a feature in Windows XP), you should also
enable Universal Plug and Play (UPnP) according to the instructions
in
Universal Plug and Play
on page
81.
To set up port triggering, you must know which inbound ports the application needs and the
number of the outbound port that will trigger the opening of the inbound ports. You can
usually get this information by contacting the publisher of the application or user groups or
newsgroups.
To set up port triggering:
1.
Select
Advanced > Advanced Setup > Port Forwarding/Port Triggering
.
2.
Select the
Port Triggering
radio button to display the port triggering information.
3.
Clear the
Disable Port Triggering
check box if it is selected.
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 the Port Triggering Timeout field, enter a value up to 9999 minutes.
This value controls the inactivity timer for the designated inbound ports. The inbound
ports close when the inactivity time expires. This value is required because the router
cannot be sure when the application has terminated.
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Advanced Settings
77
N150 4-Port Wireless Router JNR1010
5.
Click
Add Service
to display the following screen:
6.
In the Service Name field, type a descriptive service name.
7.
In the Service User list, select
Any
(the default) to allow this service to be used by any
computer on the Internet.
Otherwise, select
Single address
and enter the IP address of one computer to restrict
the service to a particular computer.
8.
Select the service type, either
TCP
or
UDP
or both (
TCP/UDP
).
If you are not sure, select TCP/UDP.
9.
In the Triggering Port field, enter the number of the outbound traffic port that will cause the
inbound ports to be opened.
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.
Dynamic DNS
If your Internet service provider (ISP) gave you a permanently assigned IP address, you can
register a domain name and have that name linked with your IP address by public Domain
Name Servers (DNS). However, if your Internet account uses a dynamically assigned IP
address, you do not know in advance what your IP address will be, and the address can
change frequently. In this case, you can use a commercial Dynamic DNS service. This type
of service lets you register your domain to their IP address and forwards traffic directed at
your domain to your frequently changing IP address.
If your ISP assigns a private WAN IP address (such as 192.168.x.x or 10.x.x.x), the Dynamic
DNS service does not work because private addresses are not routed on the Internet.
Your router contains a client that can connect to the Dynamic DNS service provided by
DynDNS.org. First visit
and obtain an account and host name that you
configure in the router. Then, whenever your ISP-assigned IP address changes, your router
automatically contacts the Dynamic DNS service provider, logs in to your account, and
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Advanced Settings
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N150 4-Port Wireless Router JNR1010
registers your new IP address. If your host name is hostname, for example, you can reach
your router at
.
On the Advanced tab, select
Advanced Setup > Dynamic DNS
to display the following
screen:
To set up Dynamic DNS:
1.
Register for an account with one of the Dynamic DNS service providers whose names
appear in the Service Provider list.
For example, for DynDNS.org, select
www.dyndns.org
.
2.
Select the
Use a Dynamic DNS Service
check box.
3.
Select the name of your Dynamic DNS service provider.
4.
Type the host name (or domain name) that your Dynamic DNS service provider gave you.
5.
Type the user name for your Dynamic DNS account.
Enter the name that you use to log in to your account, not your host name.
6.
Type the password (or key) for your Dynamic DNS account.
7.
If your Dynamic DNS provider allows the use of wildcards in resolving your URL, you can
select the
Use Wildcards
check box to activate this feature.
For example, the wildcard feature causes
*.yourhost.dyndns.org
to be aliased to the
same IP address as yourhost.dyndns.org.
8.
Click
Apply
to save your configuration.
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Advanced Settings
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N150 4-Port Wireless Router JNR1010
Static Routes
Static routes provide additional routing information to your router. Typically, you do not need
to add static routes. You configure static routes only for unusual cases such as multiple
routers or multiple IP subnets on your network.
As an example of when a static route is needed, consider the following case:
•
Your primary Internet access is through a cable modem to an ISP.
•
You have an ISDN router on your home network for connecting to the company where
you are employed. This router’s address on your LAN is 192.168.1.100.
•
Your company’s network address is 134.177.0.0.
When you first configured your router, two implicit static routes were created. A default route
was created with your ISP as the gateway, and a second static route was created to your
local network for all 192.168.1.x addresses. With this configuration, if you attempt to access a
device on the 134.177.0.0 network, your router forwards your request to the ISP. The ISP
forwards your request to the company where you are employed, and the request is likely to
be denied by the company’s firewall.
In this case, you must define a static route, telling your router that 134.177.0.0 should be
accessed through the ISDN router at 192.168.1.100. In this example:
•
The Destination IP Address and IP Subnet Mask fields specify that this static route
applies to all 134.177.x.x addresses.
•
The Gateway IP Address field specifies that all traffic for these addresses should be
forwarded to the ISDN router at 192.168.1.100.
•
A metric value of 1 will work because the ISDN router is on the LAN.
•
Private is selected only as a precautionary security measure in case RIP is activated.
To set up a static route:
1.
Select
Advanced > Advanced Setup > Static Routes
and click
Add
to display the
following screen:
2.
In the Route Name field, type a name for this static route (for identification purposes only).
3.
Select the
Private
check box if you want to limit access to the LAN only.
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Advanced Settings
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N150 4-Port Wireless Router JNR1010
If you select the Private check box, the static route is not reported in RIP.
4.
Select the
Active
check box to make this route effective.
5.
Type the destination IP address of the final destination.
6.
Type the IP subnet mask for this destination.
If the destination is a single host, type
255.255.255.255
.
7.
Type the gateway IP address.
The gateway IP address must be a router on the same LAN segment as the N150 4-Port
Wireless Router.
8.
Type a number from 1 through 15 as the metric value.
This value represents the number of routers between your network and the destination.
Usually, a setting of 2 or 3 works, but if this is a direct connection, set it to 1.
9.
Click
Apply
to add the static route.
Remote Management
The remote management feature lets you upgrade or check the status of your N150 4-Port
Wireless Router over the Internet.
To set up remote management:
1.
Select
Advanced > Advanced Setup > Remote Management
.
Note:
Be sure to change the router’s default login password to a secure
password. The ideal password contains no dictionary words from any language
and contains uppercase and lowercase letters, numbers, and symbols. It can
be up to 30 characters.
2.
Select the
Turn Remote Management On
check box.

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