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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.

8.3. 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 and its service port number. (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.

Type:

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

Fill in the "

Description

" , "

Local IP

", "

Local Port

", "

Type

" 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

<Clear>

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.

8.4. 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 (1-10) in the Copy to

selection box and then click the Copy to button. This will automatically list the Public

Ports required for this popular application in the location (1-10) you specified.

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

<Clear>

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.

8.5. Application Layer Gateway (ALG)

You can select applications that need

ALG

support. The router will let the selected

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application to correctly pass through the NAT gateway.

8.6. UPNP

With UPnP, all PCs in you Intranet will discover this router automatically. So, you don’t

have to configure your PC and it can easily access the Internet through this router.

Enable/Disable UPnP:

You can enable or Disable the UPnP feature here. After you

enable the UPnP feature, all client systems that support UPnP, like Windows XP, can

discover this router automatically and access the Internet through this router without

having to configure anything. The NAT Traversal function provided by UPnP can let

applications that support UPnP connect to the internet without having to configure the

virtual server sections.

8.7. Quality of Service (QoS)

QoS can let you classify Internet application traffic by source/destination IP address and

port number. You can assign priority for each type of application and reserve bandwidth for

it. The packets of applications with higher priority will always go first. Lower priority

applications will get bandwidth after higher priority applications get enough bandwidth. This

can let you have a better experience in using critical real time services like Internet phone,

video conference …etc. All the applications not specified by you are classified as rule

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“Others”. The rule with a smaller priority number has a higher priority; the rule with a larger

priority number has a lower priority. You can adjust the priority of the rules by moving them

up or down.

Port-based Qos

This is hardware port-based QoS control method. It will limit the packets throughput in

LAN1~4, WAN port.

Enable Port-based QoS:

Check this to enable port-based QoS functionality for the

LAN/WAN port. You can also uncheck to disable.

Priority:

High or Low priority level of the transmit packets.

Ingress Rate:

The throughput limit of receiving packets.

Egress Rate:

The throughput limit of sending packets.

Application-based Qos

This is the application based QoS control method. You can reserve or limit the

bandwidth of some LAN IP address and port number. They will guarantee the throughput

in WAN connection.

Priority Queue Type:

This can put the packets of specific protocols in High/Low Queue. The packets in

High Queue will process first.