Wireless N300 Home Router 
 
54
for FTP). Contact corresponding service provider if you don't know the 
port number of the service to use. 
2.  LAN IP: Specify the internal host’s IP address. Be sure to statically 
assign the host’s IP address to make this function constant. 
3.  Protocol: Specify the protocol required for the service utilizing the 
port(s). 
4.  Enable: Check to enable current settings. 
5.  OK: Click to activate your settings. 
Now, your friends only need to enter ftp://xxx.xxx.xxx.xxx:21 in their 
browsers to access your FTP server xxx.xxx.xxx.xxx is the router's WAN IP 
address. Assuming it is 172.16.102.89, and then your friends need to enter 
ftp://172.16.102.89:21
 in their browsers. 
For example: 
  You want to share some large files with your friends who are not in your LAN; 
however it is not convenient to transfer such large files across network. Then, 
you can set up your own PC as a FTP server and use the Port (Range) 
Forwarding feature to let your friends access these files. Assuming that the 
static IP address of the FTP server (Namely, your PC) is 192.168.0.10, you 
want your friends to access this FTP server through default port of 21 using 
the TCP protocol, then do as follows: 
1.  Start/End Port: Enter 21 in both Start Port and End Port fields. 
2.  LAN IP: Enter 192.168.0.10 
3.  Protocol: Select TCP. 
4.  Enable: Check to enable current settings. 
5.  OK: Click to activate your settings.
   
Note: If you include port 80 on this section, you must set the port for 
remote (web-based) management to a different number than 80, such 
as 8080, otherwise the virtual server feature may not take effect. 
 
6.2 DMZ Host 
The DMZ (De-Militarized Zone) function disables the firewall on the router 
for one device for a special purpose service such as Internet gaming or video 
conferencing. Enabling DMZ host may expose your local network to potential 
attacks. So it is advisable to use it with caution.