Port Forwarding - Pirelli P.RG F4202N User Manual

PORT FORWARDING

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P.RG F4202N
fined'. If you choose the 'User Defined' option, the 'Edit Network Object'
screen will appear. Specifying an address is done by creating a 'Network
Object';
The Protocol combo-box lets you select or specify the type of protocol that
4.
will be used. Selecting the 'Show All Services' option will expand the list of
available protocols. Select a protocol or add a new one using the 'User De-
fined' option. This will commence a sequence that will add a new service,
representing the protocol.
Select the 'Reply an HTML page to the blocked client' check-box to display
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the following message to the client: "Access Denied - this computer is not al-
lowed to surf the WAN. Please contact your admin.". When this check-box is
unselected, the client's packets will simply be ignored and he/she will not re-
ceive any notification.
The Schedule combo-box allows you to define the time period during which
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this rule will take effect. By default, the rule will always be active. However,
you can configure scheduled rules by selecting 'User Defined'.
Click the 'OK' button to save your changes. The 'Access Control' screen will
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display a summary of the rule that you just added.
In its default state, P.RG F4202N blocks all external users from connecting to or
communicating with your network.
Therefore the system is safe from hackers who may try to intrude on the net-
work and damage it. However, you may want to expose your network to the
Internet in certain limited and controlled ways in order to enable some applica-
tions to work from the LAN (game, voice and chat applications, for example)
and to enable Internet-access to servers in the home network. The Port For-
warding feature supports both of these functionalities. If you are familiar with
networking terminology and concepts, you may have encountered this topic re-
ferred to as "Local Servers".
The 'Port Forwarding' screen lets you define the applications that require spe-
cial handling by the Router.
All you have to do is select the application's protocol and the local IP address of
the computer that will be using or providing the service. If required, you may
add new protocols in addition to the most common ones provided by the Router.
For example, if you wanted to use a File Transfer Protocol (FTP) application on
one of your PCs, you would simply select 'FTP' from the list and enter the local
IP address or host name of the designated computer.
All FTP-related data arriving at the Router from the Internet will henceforth be
forwarded to the specified computer. Similarly, you can grant Internet users ac-
cess to servers inside your home network, by identifying each service and the
PC that will provide it. This is useful, for example, if you want to host a Web
server inside your home network. When an Internet user points his/her browser
HBK 939800036-A1 Security Section