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Advanced Settings
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CENTRIA WNDR4700/WNDR4720
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.
2.
Select the
Use a Dynamic DNS Service
check box.
3.
Select the web address of your Dynamic DNS service provider.
For example, for DynDNS.org, select www.dyndns.org.
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. This is 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.
Static Routes
Static routes provide additional routing information to your router. Typically, you do not need
to add static routes. You have to 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
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Advanced Settings
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CENTRIA WNDR4700/WNDR4720
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 have to 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 works since 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. If Private is
selected, the static route is not reported in RIP.
4.
Select the
Active
check box to make this route effective.
5.
Type the 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, which has to be a router on the same LAN segment as the
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.
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Advanced Settings
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CENTRIA WNDR4700/WNDR4720
Remote Management
The remote management feature lets you upgrade or check the status of your CENTRIA 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.
3.
Under Allow Remote Access By, specify the external IP addresses to be allowed to access
the router’s remote management.
For enhanced security, restrict access to as few external IP addresses as practical.
•
To allow access from a single IP address on the Internet, select
Only This Computer
.
Enter the IP address that will be allowed access.
•
To allow access from a range of IP addresses on the Internet, select
IP Address
Range
. Enter a beginning and ending IP address to define the allowed range.
•
To allow access from any IP address on the Internet, select
Everyone
.
4.
Specify the port number for accessing the management interface.
Normal web browser access uses the standard HTTP service port 80. For greater
security, enter a custom port number for the remote web management interface. Choose
a number from 1024 to 65535, but do not use the number of any common service port.
The default is 8080, which is a common alternate for HTTP.
5.
Click
Apply
to have your changes take effect.
6.
When accessing your router from the Internet, type your router’s WAN IP address into your
browser’s address or location field followed by a colon (:) and the custom port number. For
example, if your external address is 134.177.0.123 and you use port number 8080, enter
in your browser.
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Advanced Settings
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CENTRIA WNDR4700/WNDR4720
USB Settings
For added security, the router can be set up to share only approved USB devices. See
Specify Approved USB Devices
on page
60 for the procedure.
Universal Plug and Play
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.
If you use applications such as multiplayer gaming, peer-to-peer connections, or real-time
communications such as instant messaging or remote assistance (a feature in Windows XP),
you should enable UPnP.
To turn on Universal Plug and Play:
1.
Select
Advanced > Advanced Setup >
UPnP
. The UPnP screen displays.
2.
The available settings and information in this screen are:
Turn UPnP On
.
UPnP can be enabled or disabled for automatic device configuration.
The default setting for UPnP is disabled. If this check box is not selected, the router does
not allow any device to automatically control the resources, such as port forwarding
(mapping) of the router.
Advertisement Period
.
The advertisement period is how often the router broadcasts its
UPnP information. This value can range from 1 to 1440 minutes. The default period is 30
minutes. Shorter durations ensure that control points have current device status at the
expense of additional network traffic. Longer durations can compromise the freshness of
the device status, but can significantly reduce network traffic.
Advertisement Time to Live
.
The time to live for the advertisement is measured in hops
(steps) for each UPnP packet sent. The time to live hop count is the number of steps a
broadcast packet is allowed to propagate for each UPnP advertisement before it
disappears. The number of hops can range from 1 to 255. The default value for the
advertisement time to live is 4 hops, which is fine for most home networks. If you notice
that some devices are not being updated or reached correctly, then it might be necessary
to increase this value.
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Advanced Settings
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CENTRIA WNDR4700/WNDR4720
UPnP Portmap Table
.
The UPnP Portmap Table displays the IP address of each UPnP
device that is currently accessing the router and which ports (internal and external) that
device has opened. The UPnP Portmap Table also displays what type of port is open and
whether that port is still active for each IP address.
3.
Click
Apply
to save your settings.
IPv6
You can use this feature to set up an IPv6 Internet connection type if genie does not detect it
automatically.
To set up an IPv6 Internet connection type:
1.
Select
Advanced > Advanced Setup > IPv6
to display the following screen:
2.
Select the IPv6 connection type from the list. Your Internet service provider (ISP) can provide
this information.
•
If your ISP did not provide details, you can select
IPv6 Tunnel
.
•
If you are not sure, select
Auto Detect
so that the router detects the IPv6 type that is
in use.
•
If your Internet connection does not use PPPoE, DHCP, or fixed, but is IPv6, select
Auto Config
.
•
For more detailed information about Internet connection types, see the following
sections.
3.
Click
Apply
so that your changes take effect.

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