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Using the Configuration Utility in
Router Mode
(continued)
Advanced > Virtual Server
The DWL-G730AP can be configured as a virtual server so that remote users accessing
Web or FTP services via the public IP address can be automatically redirected to local
servers in the LAN (Local Area Network).
The DWL-G730AP firewall feature filters out unrecognized packets to protect your LAN
network so all computers networked with the DWL-G730AP are invisible to the outside
world. If you wish, you can make some of the LAN computers accessible from the Internet
by enabling
Virtual Server.
Depending on the requested service, the DWL-G730AP
redirects the external service request to the appropriate server within the LAN network.
The DWL-G730AP is also capable of port-redirection meaning incoming traffic to a
particular port may be redirected to a different port on the server computer.
Each virtual service that is created will be listed at the bottom of the screen in the Virtual
Servers List. There are pre-defined virtual services already in the table. You may use them
by enabling them and assigning the server IP to use that particular virtual service.
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42
Using the Configuration Utility in
Router Mode
(continued)
Advanced > Virtual Server (continued)
Example #1:
Protocol Type-
The protocol used for the virtual service.
Public Port-
The port number on the WAN (Wide Area Network) side that
will be used to access the virtual service.
Private Port-
The port number of the service used by the Private IP
computer.
Schedule-
The schedule of time when the virtual service will be enabled.
The schedule may be set to
Always
, which will allow the
particular service to always be enabled. If it is set to
From
,
select the time frame for the service to be enabled. If the
system time is outside of the scheduled time, the service will
be disabled.
Virtual Server-
Select
Enabled
or
Disabled.
Name-
Enter the name referencing the virtual service.
Private IP-
The server computer in the LAN (Local Area Network) that will
be providing the virtual services.
If you have a Web server that you wanted Internet users
to access at all times, you would need to enable it. Web
(HTTP) server is on LAN (Local Area Network) computer
192.168.0.25. HTTP uses port 80, TCP.
Name: Web Server
Private IP: 192.168.0.25
Protocol Type: TCP
Private Port: 80
Public Port: 80
Schedule: always
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43
Using the Configuration Utility in
Router Mode
(continued)
Advanced > Virtual Server (continued)
Example #2:
If you have an FTP server that you wanted Internet users to access by WAN port
2100 and only during the weekends, you would need to enable it as such. FTP
server is on LAN computer
192.168.0.30. FTP uses port 21, TCP.
Name: FTP Server
Protocol Type: TCP
Private Port: 21
Public Port: 2100
Schedule: From: 01:00AM to 01:00AM, Sat to Sun
Click on this icon to edit the virtual service
Click on this icon to delete the virtual service
All Internet users who want to access this FTP Server
must connect to it from port 2100. This is an example of
port redirection and can be useful in cases where there
are many of the same servers on the LAN network.
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44
Using the Configuration Utility in
Router Mode
(continued)
Advanced > Applications
Some applications such
as Internet gaming,
video conferencing,
Internet telephony
and others, require
multiple connections.
These applications
save difficulties working
through NAT (Network
Address Translation).
Special Applications
makes some of these
applications work with
the DWL-G730AP. If you
need to run applications
that require multiple
connections, specify the
port normally associated
with an application in
the “Trigger Port” field,
select the protocol type
as TCP or UDP, then enter the public ports associated with the trigger port to open
them for inbound traffic.
The DWL-G730AP provides some predefined applications in the table on the bottom
of the Web page. Select the application you want to use and enable it.
Name:
This is the name referencing the special application.
Trigger Port:
This is the port used to trigger the application. It can be either
a single port or a range of ports.
Trigger Type:
This is the protocol used to trigger the special application.
Public Port:
This is the port number on the WAN side that will be used
to access the application. You may define a single port or a
range of ports. You can use a comma to add multiple ports or
port ranges.
Public Type:
This is the protocol used for the special application.
Note!
Only one PC can use each Special Application tunnel.
Special Applications List
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45
Using the Configuration Utility in
Router Mode
(continued)
Advanced > Filters > IP Filters
Filters are used to deny or allow LAN (Local Area Network) computers from accessing
the Internet. The DWL-G730AP can be setup to deny internal computers by their IP or
MAC addresses. The DWL-G730AP can also block users from accessing restricted
web sites.
This is the schedule of time when the IP Filter will be enabled.
Schedule:
Select the protocol type
Protocol Type:
Use IP Filters to deny LAN IP addresses from accessing the
Internet. You can deny specific port numbers or all ports for
the specific IP address.
IP Filters:
The single port or port range that will be denied access to the
Internet.
Port:
The IP address of the LAN computer that will be denied
access to the Internet.
IP:
19216811.live