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5.7.5.2

Port Triggering

Object:

The purpose of this menu is to open dynamically the firewall ports (open ports) via

"Trigger Ports" when an application (such as games or video) opens a connection via

the transport layer (TCP or UDP).

•

In the

Advanced Setup

menu, select

NAT

then select

Port Triggering

.

The following screen opens:

Field

Meaning

Application Name

Application name.

Trigger

•

Protocol:

Transport protocol (TCP, UDP or TCP/UDP).

•

Port Range:

A port range contains a Start port and an End port.

Note:

A single port is characterised by an identical start port and

end port.

Open

•

Protocol:

Transport protocol (TCP, UDP or TCP/UDP).

•

Port Range:

A port range contains a Start port and an End port.

Note:

A single port is characterised by an identical start port and

end port.

WAN Interface

WAN Interface used.

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Add

•

Click on the

Add

button; the following screen appears:

To configure

Trigger Port

and

Open Port

, proceed as follows:

•

Select the required WAN interface in the

Use Interface

list.

•

Check the

Select an application

box, then select the service of your choice from the scroll

down list, for example "Aim Talk".

The

Trigger Port Start

,

Trigger Port End

,

Open Port Start

,

Open Port End

and

Protocol

fields (transport protocol associated with this service) are automatically filled in

the table.

Note

You may complete the table by adding other ports associated with a protocol.

or

•

Check the

Custom application

box to specify your own application, then.

•

Enter the name of your own application.

•

Fill in the

Trigger Port Start

,

Trigger Port End

,

Open Port Start

,

Open Port End

and

Protocol

fields.

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A few rules for entering values:

•

When you want to select a single port, the start port (

Trigger Port Start

or

Open Port

Start

) and the end port (

Trigger Port End

or

Open Port End

) must be identical.

•

When you want to select a range of ports, the start port number must be lower than the end

port number.

The following diagram contains an example:

Using the "Trigger" 3568 port (WAN side), the "Delta Force" service server triggers the opening

of port range 3100 to 3999 for your computer to access this service.

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5.7.5.3

DMZ Host

Object:

This "DMZ" (

D

e

M

ilitarized

Z

one) lets you access the server you selected directly via

the Internet without going through the "Firewall".

Important

Caution, this process presents an intrusion risk. It is therefore vital that you take

precautions so that no connections may be initiated to the private network.

•

In the

Advanced Setup

menu, select

NAT

then select

DMZ Host

.

The following screen opens:

Field

Action

Default

value

DMZ Host IP Address

Enter the IP address of a server to activate the "DMZ"

and therefore access it directly from the Internet.

To deactivate the "DMZ" zone, erase the address

entered in the field.

Note

:

Click on the

Save/Apply

button to take

account of the address or its erasure.

-

Note

The

DMZ

zone is deactivated by default.

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5.7.6

Security

5.7.6.1

IP Filtering

Outgoing

Object:

This menu is used to create outgoing IP filters to refuse data from the LAN to the WAN

and list the existing outgoing IP filters.

By default, all the outgoing data is accepted.

•

In the

Advanced Setup

menu, select

Security > IP Filtering >Outgoing

.

The following screen opens:

Field

Meaning

Filter Name

Name of the filter.

Protocol

Transport protocol.

Source Address / Mask

Source IP address / Subnet mask.

Source Port

Source port

Dest. Address / Mask

Destination IP address / Subnet mask.

Dest. Port

Destination port.