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ADSL2/2+ Router
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drop-down list box.
(2) Custom Service: allows you to define a
service yourself.
±
Server IP Address:
The IP address of the server created on LAN
side.
±
External Port Start/ External Port End:
The port range through
which Internet users access the router’s LAN side server.
±
Protocol: There are 3 options:
TCP, UDP and TCP/UDP. We
recommend you to select TCP/UDP if you are not sure about
which protocol to choose.
±
Internal Port Start/ Internal Port End:
The port range used by
the created server on router’s LAN side.
Note:
When UPNP function is enabled on the router and on some
application programs on the computer that is connected to the router’s
LAN port, the virtual server page will display: UPNP interface is being
used.
For example, you have created two servers on the router’s LAN side: (1)
FTP server (Port: 21) for transferring files is at the IP address of
192.168.1.100 (2) Web server (port: 80) is at the IP address of
192.168.1.110. And you want your Internet friends to access your FTP
and Web servers respectively via port: 21 and port: 80. For
configurations, follow the instructions below:
1. Configuring FTP server:
Click “NAT”-> “Virtual Server” to enter the virtual server interface. Then
click the “Add” button to configure the following page (refer to the
parameters that are configured on the page):
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ADSL2/2+ Router
2. Configuring Web server
The screen appears as below after the above configuration is finished:
Supposing that the IP address of PPP0 is 183.37.227.201, then the
Internet user only needs to enter ftp
//183.37.227.201 or http
//183.37.227.201 in Web browser address field to access your FTP or
Web server respectively.
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ADSL2/2+ Router
4.2.6 Port Triggering
Some application programs or network business (such as network
game, video conference, etc) can not work with simple NAT router due
to the isolation caused by router’s built-in firewall. Therefore, proper
configuration is needed. When application program initiates a
connection toward the triggering port, all correspondingly open ports
will be enabled to implement successful connection and service.
Click “Advanced Setup”
Æ
“NAT”
Æ
“Port Triggering” to enter the port
triggering interface and then click the “Add” button to add rules.
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ADSL2/2+ Router
±
Use Interface:
It indicates which WAN connection the configured
rules are to be applied to. When there is only one configured WAN
connection available, system will select it automatically.
±
Application Name:
There are two options available:
(1) Select an application:
allows you to select an existing application
from the drop-down list box.
(2) Custom application:
allows you to define an application
yourself.
±
Trigger Port Start/ Trigger Port End:
The port range for
application programs to initiate connections.
±
Trigger Protocol:
There are 3 options: TCP, UDP and TCP/UDP.
We recommend you to select TCP/UDP if you are not sure about
which protocol to choose.
±
Open Port Start/ Open Port End:
the port range that will be
automatically enabled by the built-in firewall when connections
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ADSL2/2+ Router
initiated by application programs succeed.
For example, you have created a server on router’s LAN side that can
automatically download material from Internet (via port: 9090) and
share its data with other users. And you want Internet users to
download data from your server (via port: 9999). For configurations,
follow the instructions below:
To enter the port-triggering interface, click “Advanced Setup”
Æ
“NAT”
Æ
“Port Triggering”, and then click the “Add” button to configure
the page below (Refer to the parameters configured on the page
below):
When your server initiates a connection toward the server on Internet
via port: 9090, the router’s firewall will automatically open port: 9999 to
let Internet users access your server to download data via this port:
9999.
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