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Page 46 / 95 Scroll up to view Page 41 - 45
T-Mobile TM-G5240 Wireless Router User Manual
Version 0.7 041807
43
Advanced tab
Advanced > Virtual Server
The TM-G5240 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 TM-G5240 firewall feature filters out unrecognized packets to protect your LAN
network so all computers networked with the TM-G5240 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 TM-G5240 redirects the
external service request to the appropriate server within the LAN network.
The TM-G5240 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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T-Mobile TM-G5240 Wireless Router User Manual
Version 0.7 041807
44
At the
Advanced > Virtual Server
tab, you can adjust:
•
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.
•
Protocol Type
- The server computer in the LAN (Local Area Network) that will be
providing the virtual services.
•
Private Port
- The port number of the service used by the Private IP computer.
•
Public 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
Time
, 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.
EXAMPLE 1
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
Click to edit virtual service
click to delete virtual service
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Page 48 / 95
T-Mobile TM-G5240 Wireless Router User Manual
Version 0.7 041807
45
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
Private IP: 192.168.0.30
Protocol Type: TCP
Private Port: 21
Public Port: 2100
Schedule: From: 01:00AM to 01:00AM, Sat to Sun
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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T-Mobile TM-G5240 Wireless Router User Manual
Version 0.7 041807
46
Advanced > Applications
Some applications require multiple connections, such as Internet gaming, video
conferencing, Internet telephony and others. These applications have difficulties working
through NAT (Network Address Translation). Special Applications makes some of these
applications work with the TM-G5240. 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 TM-G5240 provides some predefined applications in the table on the bottom of the
web page. Select the application you want to use and enable it.
NOTE:
Only one PC can use each Special Application tunnel.
At the
Advanced > Applications
tab, you can adjust:
•
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.
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T-Mobile TM-G5240 Wireless Router User Manual
Version 0.7 041807
47
•
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.
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