WWW.SparkLAN.com

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

WWW.SparkLAN.com

User’s Guide

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.

WWW.SparkLAN.com

User’s Guide

27

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.

WWW.SparkLAN.com

User’s Guide

28

•

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.

WWW.SparkLAN.com

User’s Guide

29

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.