Virtual Server / Port Forwarding - Asus 4G-N12 User Manual

4.3.5 Virtual Server / Port Forwarding

Virtual Server is a method to direct network traffic from the
Internet to a specific port or a specific range of ports to a device or
number of devices on your local network.
If you configure the LTE Router as a virtual server, remote users
accessing services such as web or FTP at your local site via public
IP addresses can be automatically redirected to local servers
configured with private IP addresses. In other words, depending
on the requested service (TCP/UDP port number), the LTE Router
redirects the external service request to the appropriate server
(located at another internal IP address).
For example, if you set Type/Public Port to TCP/80 (Http or web)
and the Private IP/Port to 192.168.2.2:80, then all HTTP requests
from outside users will be transferred to 192.168.2.2 on port
80. Therefore, by just entering the IP address provided by the
ISP, Internet users can access the service they need at the local
address to which you redirect them.
NOTE: The more common TCP service ports include: HTTP: 80, FTP: 21,
Telnet: 23, and POP3: 110. A list of ports is maintained at http://www.
iana.org/assignments/port-numbers.
36