Fill in the "

Local IP

", “

Protocol

”, “

Port Range

” and "

Description

" of the setting to

be added and then click "

Add

". Then this Port Mapping setting will be added into the

"

Current Port Mapping Table

" below. If you find any typo before adding it and want

to retype again, just click

<Reset>

and the fields will be cleared.

Remove Port Mapping

If you want to remove a Port Mapping setting from the "

Current Port Mapping

Table

", select the Port Mapping setting that you want to remove in the table and then

click

D<Delete Selected>

. If you want to remove all Port Mapping settings from the

table, click

<Delete All>

button. Click

<Reset>

will clear your current selections.

Click <

Apply

> at the bottom of the screen to save the above configurations.

-

Port Forwarding (Virtual Server)

Use the Port Forwarding (Virtual Server) function when you want different

servers/clients in your LAN to handle different service/Internet application type (e.g.

Email, FTP, Web server etc.) from the Internet. Computers use numbers called port

numbers to recognize a particular service/Internet application type. The Virtual

Server allows you to re-direct a particular service port number (from the

Internet/WAN Port) to a particular LAN private IP address (See Glossary for an

explanation on Port number).

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Enable Port Forwarding:

Enable or disable Port Forwarding.

Description:

The description of this setting.

Local IP / Local Port:

This is the LAN Client/Host IP address and Port number

that the Public Port number packet will be sent to.

Protocol:

Select the port number protocol type (TCP, UDP or both). If you are

unsure, then leave it to the default “both” setting. Public Port enters the

service (service/Internet application) port number from the Internet that will be

re-directed to the above Private IP address host in your LAN Network.

Public Port:

Port number will be changed to Local Port when the packet enters

your LAN Network.

Add Port Forwarding

67

Fill in the "

Description

" , "

Local IP

", "

Local Port

", "

Protocol

" and “

Public Port

”

of the setting to be added and then click

<Add>

button. Then this Virtual

Server setting will be added into the "

Current Port Forwarding Table

"

below. If you find any typo before adding it and want to retype again, just

click

<Reset>

and the fields will be cleared.

Remove Port Forwarding

If you want to remove Port Forwarding settings from the "

Current Port

Forwarding Table

", select the Port Forwarding settings you want to

remove in the table and then click "

Delete Selected

". If you want to remove

all Port Forwarding settings from the table, just click the

<Delete All>

button. Click

<Reset>

will clear your current selections.

Click <

Apply

> at the bottom of the screen to save the above configurations.

- Port Triggering (Special Applications)

Some applications require multiple connections, such as Internet games, video

Conferencing, Internet telephony and others. In this section you can configure

the router to support multiple connections for these types of applications.

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Enable Trigger Port:

Enable or disable the Port Trigger function.

Trigger Port:

This is the outgoing (Outbound) range of port numbers for this

particular application.

Trigger Type:

Select whether the outbound port protocol is “

TCP

”, “

UDP

” or

“

BOTH

”.

Public Port:

Enter the In-coming (Inbound) port or port range for this type of

application (e.g. 2300-2400, 47624)

Public Type:

Select the Inbound port protocol type: “

TCP

”, “

UDP

” or “

BOTH

”

Popular Applications:

This section lists the more popular applications that

require multiple connections. Select an application

from the Popular Applications selection. Once you

have selected an application, select a location (1-5) in

the “Add” selection box and then click the <Add>

button. This will automatically list the Public Ports

required for this popular application in the location (1-5)

you specified.

69

Add Port Triggering

Fill in the "

Trigger

Port

", "

Trigger

Type

”, “

Public

Port

”, "

Public

Type

",

"

Public

Port

" and "

Description

" of the setting to be added and then Click

<Add>

. The Port Triggering setting will be added into the "

Current

Trigger-

Port Table

" below. If you happen to make a mistake, just click

<Reset>

and the fields will be cleared.

Remove Port Triggering

If you want to remove Special Application settings from the "

Current

Trigger-Port Table

", select the Port Triggering settings you want to remove

in the table and then click

<Delete

Selected>

. If you want remove all Port

Triggering settings from the table, just click the

<Delete All>

button. Click

<Reset>

will clear your current selections.

-

Application Layer Gateway (ALG)

You can select applications that need

ALG

support. The router will let the selected

application to correctly pass through the NAT gateway.

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