Billion 810VGTX Router
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Sometimes your customers or friends may upload their files to your FTP server and that will saturate your downstream
bandwidth. The settings below will help you to limit bandwidth for the restricted application.
Virtual Server (known as Port Forwarding)
In TCP/IP and UDP networks, a port is a 16-bit number used to identify which application program (usually a server)
incoming connections should be delivered to. Some ports have numbers that are pre-assigned to them by the IANA (the
Internet Assigned Numbers Authority), and these are referred to as “well-known ports”. Servers follow the well-known
port assignments so clients can locate them.
If you wish to run a server on your network that can be accessed from the WAN (i.e. from other machines on the Internet
that are outside your local network), or any application that can accept incoming connections (e.g. Peer-to-peer/P2P
software such as instant messaging applications and P2P file-sharing applications) and are using NAT (Network Address
Translation), then you will usually need to configure your router to forward these incoming connection attempts using
specific ports to the PC on your network running the application. You will also need to use port forwarding if you want to
host an online game server.
The reason for this is that when using NAT, your publicly accessible IP address will be used by and point to your router,
which then needs to deliver all traffic to the private IP addresses used by your PCs. Please see the WAN configuration
section of this manual for more information on NAT.
The device can be configured as a virtual server so that remote users accessing services such as Web or FTP services
via the public (WAN) IP address can be automatically redirected to local servers in the LAN network. Depending on the
requested service (TCP/UDP port number), the device redirects the external service request to the appropriate server
within the LAN network.
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