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54
Wireless-N Broadband Router 11N – User Guide
Port Range Forwarding
This section deals with the port range forwarding mainly. The Port
Range Forwarding allows you to set up a range of public services
such as web servers, ftp, e-mail and other specialized Internet
applications to an assigned IP address on your LAN.
Start/End Port:
Enter the start/end port number which ranges the
External ports used to set the server or Internet
applications.
IP Address:
Enter the IP address of the PC where you want to set
the applications.
Protocol:
Select the protocol (TCP/UDP/Both) for the application.
Well-Known Service Port: Select the well-known services
as DNS, FTP from the drop-down menu to add to the con
fi
gured one
above.
Delete/Enable:
Click to check it for corresponding operation.
Port Trigger Settings
When internal clients have access to external server in the Internet
for some application, the clients request to connect with severs,
and the server will also ask to connect with client. But in the default
setting, router will refuse to accept any request from WAN, which
will bring communication halt. The port triggering is used to de
fi
ne
triggering rules. So when clients have access to the server, the
device will open the port through which the server sends the request
to client.
IP Range:
The internal IP address range for requesting external
server application.
Trigger Port:
The port range through which the internal clients send
request traf
fi
cs to external server with the range of 1 65535. Note
that the low number
fi
rst and two blanks can keep the same number
if needed.
External Port:
The port range through which the external server
send request traf
fi
cs to internal clients with the range of 1 65535.
Note that the low number
fi
rst and two blanks can keep the same
number if needed.
Apply:
To enable or disable the rule.
Add:
After edit the rule, click the “add” button to add the current
entry to port triggering list.
Apply:
Click “Apply” to activate the current rule.
Cancel:
Click “Cancel” to drop all setting saved last time.
It is allowed to delete or modify the previous rules in the list table.
Note:
The special application can be only used in one PC.
If there is more than one PC to open the same triggering port, the
external port will be connected to the last PC for the application.
