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Virtual Servers Setup
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219
3
Click
Virtual Servers
. The Virtual Servers screen opens.
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Chapter 7
Advanced Configuration
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4
From the Virtual Servers Setup screen, click
Add
. The NAT -- Virtual Servers
screen opens.
5
Under Server Name, choose one of the following:
Click
Select a Service
, and choose a service from the drop-down list.
OR
Click
Custom Server
, and enter a server name and the Server IP Address.
6
In the Server IP Address field, enter the IP address for the server.
7
In the External Port Start/End fields, assign the external (Internet) port range of
numbers that are associated with the service.
These are the ports which will be
used for receiving the service request from the WAN. If you have chosen to
Select a Service from the above selection, the ports will be entered automatically
for you.
8
Under Protocol, select TCP, UDP, or TCP/UDP.
9
In the Internet Port Start/End fields, assign the internal (LAN) port range of
numbers that are associated with the service. These are the ports which the
actual LAN server defines. If you have chosen to Select a Service from the above
selection, the ports will be entered automatically for you.
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10
In the Remote IP field, enter the service request (client) sender's IP address.
Leave it blank to accept all incoming service requests regardless of the senders'
IP address.
11
Click
Save/Apply
to add the virtual server.
Removing a Virtual Server
To remove a virtual server, complete the following steps.
1
Click
Advanced
on the main screen.
2
Click
IP Networking
. The NAT screen opens.
3
Click
Virtual Servers
. The Virtual Servers screen opens.
4
From the NAT -- Virtual Servers Setup screen, select
Remove
in the Remove
column next to the server you wish to remove.
5
Click
Remove
to remove the NAT Virtual Server.
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Chapter 7
Advanced Configuration
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Port Triggering Setup
Some applications require that specific ports in the router's firewall be opened for
access by the remote parties. The Port Triggering feature dynamically opens up the
"Open Ports" in the firewall when an application on the LAN initiates a TCP/UDP
connection to a remote party using the Triggering Ports feature. The router allows
the remote party from the WAN side to establish new connections with the
application on the LAN side using the open ports. A maximum of 32 entries can be
configured.
The NAT -- Port Triggering screen allows you to configure servers to which you
want to forward IP packets that belong to a specific service.
Path
:
Advanced > IP Networking > NAT > Port Triggering > NAT -- Port
Triggering
Opening a Port on the Firewall
To open a port on the firewall, complete the following steps.
1
Click
Advanced
on the main screen.
2
Click
IP Networking
. The NAT screen opens.
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Port Triggering Setup
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3
Click
Port Triggering
. The NAT -- Port Triggering screen opens.
4
From the NAT -- Port Triggering screen, click
Add
. The NAT Port Triggering
screen opens with a list of available protocols.

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