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User’s Guide
25
4.9. Port Forwarding
The
Port Forwarding
screen sets up public services on your network, such as web servers, ftp servers,
e-mail servers, or other specialized Internet applications. (Specialized Internet applications are any
applications that use Internet access to perform functions such as videoconferencing or online gaming.
Some Internet applications may not require any forwarding.)
When users send this type of request to your network via the Internet, the Router will forward those
requests to the appropriate PC. Any PC whose port is being forwarded must have its DHCP client
function disabled and must have a new static IP address assigned to it because its IP address may
change when using the DHCP function.
Customized
Applications
Enter the name of the public service or other Internet application in the field provided.
External Port
Enter the numbers of the External Ports (the port numbers seen by users on the Internet).
TCP Protocol
Click this checkbox if the application requires TCP.
UDP Protocol
Click this checkbox if the application requires UDP.
IP Address
Enter the IP Address of the PC running the application.
Enable
Click the
Enable
checkbox to enable port forwarding for the application.
Port Triggering
Port Triggering is used for special Internet applications whose outgoing ports differ from the
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26
incoming ports. For this feature, the Router will watch outgoing data for specific port numbers.
The Router will remember the IP address of the computer that sends a transmission requesting
data, so that when the requested data returns through the Router, the data is pulled back to the
proper computer by way of IP address and port mapping rules. Click the
Port Triggering
button
to set up triggered ports, and follow these instructions:
1.
Enter the Application Name of the trigger.
2.
Enter the Outgoing Port Range used by the application. Check with the Internet application
for the port number(s) needed.
3.
Enter the Incoming Port Range used by the application. Check with the Internet application
for the port number(s) needed.
4.
Click the
Apply
button to save your changes. Click the
Cancel
button to cancel your
unsaved changes. Click the
Close
button to return to the
Port Forwarding
screen.
Check all the settings and click
Apply
to save them.
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4.10. Routing
On the
Routing
screen, you can set the routing mode and settings of the Router. Gateway mode is
recommended for most users.
Operating Mode
The default setting is
Gateway
.
Choose the correct working mode. Keep the default setting,
Gateway
, if the Router is
hosting your network's connection to the Internet (Gateway mode is recommended for
most users). Select
Router
if the Router exists on a network with other routers.
Dynamic Routing
(RIP)
Note: This feature is not available in Gateway mode.
The default setting is
Disable
.
Dynamic Routing enables the Router to automatically adjust to physical changes in the
network's layout and exchange routing tables with other routers. The Router determines
the network packets' route based on the fewest number of hops between the source and
destination.
To enable the Dynamic Routing feature, select
Enable
. To disable the Dynamic Routing
feature for all data transmissions, keep the default setting,
Disable
.
Static
Routing, Destination
IP Address, Subnet
Mask, Gateway, and
Interface
1. To set up a static route between the Router and another network, select a number from
the
Static Routing
drop-down list. (A static route is a pre-determined pathway that
network information must travel to reach a specific host or network.)
2. Enter the following data:
Destination IP Address
- The Destination IP Address is the address of the network or
host to which you want to assign a static route.
Subnet Mask
- The Subnet Mask determines which portion of an IP address is the
network portion, and which portion is the host portion.
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Gateway
- This is the IP address of the gateway device that allows for contact between
the Router and the network or host.
3. Depending on where the Destination IP Address is located, select
LAN & Wireless
or
Internet (WAN)
from the
Interface
drop-down menu.
4. To save your changes, click the
Apply
button. To cancel your unsaved changes, click
the
Cancel
button.
For additional static routes, repeat steps 1-4.
Delete This Entry
To delete a static route entry:
1. From the
Static Routing
drop-down list, select the entry number of the static route.
2. Click the
Delete This Entry
button.
3. To save a deletion, click the
Apply
button. To cancel a deletion, click the
Cancel
button.
Show Routing Table
Click the
Show Routing Table
button to view all of the valid route entries in use. The
Destination IP address, Subnet Mask, Gateway, and Interface will be displayed for each
entry. Click the
Refresh
button to refresh the data displayed.
Destination LAN IP
- The Destination IP Address is the address of the network or host to
which the static route is assigned.
Subnet Mask
- The Subnet Mask determines which portion of an IP address is the
network portion, and which portion is the host portion.
Gateway
- This is the IP address of the gateway device that allows for contact between
the Router and the network or host.
Interface
- This interface tells you whether the Destination IP Address is on the
LAN &
Wireless
(internal wired and wireless networks), the
WAN
(Internet), or
Loopback
(a
dummy network in which one PC acts like a network— necessary for certain software
programs).
* Click
Apply
to save your settings.
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4.11. DDNS
The Router offers a Dynamic Domain Name System (DDNS) feature. DDNS lets you assign a fixed
host and domain name to a dynamic Internet IP address. It is useful when you are hosting your own
website, FTP server, or other server behind the Router. Before using this feature, you need to sign up
for DDNS service with one of two DDNS service providers, DynDNS.org or TZO.
DynDNS.org
DDNS Service
To disable DDNS Service, keep the default setting,
Disable
. To enable DDNS Service using
DynDNS.org, follow these instructions:
1. On the
DDNS
screen, select
DynDNS.org
from the
DDNS Service Provider
drop-down menu.
2. Sign up for DynDNS service at
www.dyndns.org
(you can click the link on the
DDNS
screen).
Write down your account information.
3. Complete the
User Name
,
Password
, and
Host Name
fields.
4. Click the
Apply
button to save your changes. Click the
Cancel
button to cancel unsaved
changes.
Internet IP
Address
The Router's current Internet IP Address is displayed here.
Status
The status of the DDNS service connection is displayed here.
TZO.com
DDNS Service
To disable DDNS Service, keep the default setting,
Disable
. To enable DDNS Service using
TZO.com, follow these instructions:
1. On the
DDNS
screen, select
TZO.com
from the
DDNS Service Provider
drop-down menu.
2. Sign up for a free, 30-day trial of TZO service at
sparklan.tzo.com
, or order TZO service at
www.tzo.com/order.html
(you can click the appropriate link on the
DDNS
screen). Write
down your account information.
3. Complete the
Email Address
,
TZO Password Key
, and
Domain Name
fields.
4. Click the
Apply
button to save your changes. Click the
Cancel
button to cancel unsaved
changes.
Internet IP
Address
The Router’s current Internet IP Address is displayed here.
Status
The status of the DDNS service connection is displayed here.
* Click
Apply
to save your settings.

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