Broadband Security Router User Guide
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Ports:
Enter the desired service port numbers in the
“Ports”
fields.
You can specify the protocol type as
“TCP”
or
“UDP”
from
the drop-down list. If you are not sure which one to select,
choose “
Both”
. A selection of well-known service port
numbers is provided on this screen.
Redirect IP Address:
Enter the appropriate IP Addresses of the service computers
in the
“Redirect IP Address”
locations.
Passive FTP Virtual
Server:
When there is firewall filtering in your network, the Internet
user may not be able to access FTP server you set in the LAN
side. Setting FTP server at passive mode will be necessary.
Enable/Disable -
Click to enable/disable passive FTP
function.
FTP Port -
Enter the port number (> 1024) that the FTP
server will use as data connection port number. The client
side should select passive mode and use the same port
number entered here.
Server IP Address -
Enter the appropriate IP Addresses of
the service computers.
Apply:
Click this
button after making any changes for activating the
settings.
Undo:
Click this button if you are not satisfied with the settings in
this page before clicking Apply.
Example
:
If the service port number
80~80
(representing an HTTP web address) is entered in
“Ports”
and
192.168.1.100
is entered in
“Redirect IP Address”
, then all HTTP
requests from external Internet users will be directed to the PC/server with the
192.168.1.100 fixed IP Address.
Below is a list of the protocol and port ranges that are used by some common
applications.
Application Protocol
Port
Range
FTP Server
TCP
21
Half Life
UDP
6003, 7002, 27010, 27015, 27025
MSN Messenger
TCP
TCP
UDP
UDP
UDP
TCP
6891-6900 (File-send)
1863
1863
5190
6901 (Voice)
6901 (Voice)
PC Anywhere host
TCP
UDP
5631
5632
Quake 2
UDP
27910