44
area network. However, they are too big, and it's not convenient to physically transfer them.
You can build a FTP server on your computer and set the router's port range forwarding to
give your friends access to these files on your computer. For the purpose of this example,
suppose that your FTP server (or your computer's static IP address) is 192.168.0.10 and
you want your friends to access the server through the default port 21 using the TCP
protocol. You would then perform the following steps:
1. Enter 21 in both the Start port and End port fields. Alternatively, you can select
FTP
FTP
FTP
FTP
from
the well-known service port list and port 21 will be added to the corresponding fields
automatically.
2. Enter 192.168.0.10 in the LAN IP column.
3. Select
Both
Both
Both
Both
as the protocol.
4. Check the box under
Enable
Enable
Enable
Enable
.
5. Click the
Ok
Ok
Ok
Ok
button to put the rule into effect.
Now, when your friends want to visit the FTP server, they only need to enter
HHHH
HHHH
in the address field. Here, xxx.xxx.xxx.xxx is the router's WAN IP
address. For example, when your router's WAN IP address is 172.16.102.89 your friends
need to enter
HHHH
HHHH
HHHH
HHHH
HHHH
::::21
21
21
21
in the address field.
NOTE:
NOTE:
NOTE:
NOTE:
If
If
If
If you
you
you
you set
set
set
set the
the
the
the service
service
service
service port
port
port
port of
of
of
of the
the
the
the virtual
virtual
virtual
virtual server
server
server
server to
to
to
to 80,
80,
80,
80, you
you
you
you must
must
must
must set
set
set
set the
the
the
the Web
Web
Web
Web
