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24 X4 ADSL Modem User’s Manual
2
22
2
Navigate back to the X4’s
Advanced Setup
page and click the
Virtual Server
button.
ID
The ID number is a convenient way to refer
to a particular computer.
Public Port
Inbound port from the Internet.
Private Port
Inbound port from the modem to the LAN.
Port Type
Default is TCP. UDP is optional.
Host IP Address
IP address of the host computer—i.e., on the
LAN side.
a
aa
a
Select an ID number that you want to associate with this
computer—1, for example.
b
bb
b
In this example, the public and private port numbers are the
same: 21. Enter 21 in the
Public Port
and
Private Port
fields.
c
cc
c
Select the
Port Type
. For FTP, it is
TCP
, which is the default.
d
dd
d
Enter the
Host IP Address
. (This is the fixed IP address of
the computer or device to which the virtual server is passing
data.)
e
ee
e
Click
Add This Setting
(in this case, there is no
Save
Changes
button), and then click
Write Settings to Flash and
Reboot
.