Zte ZXDSL-531B, Руководство пользователя

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ADSL Router User Manual
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The Router implements NAT to let your entire local network appear as a single machine to the Internet. The typical
situation is that you have local servers for different services and you want to make them publicly accessible. With
NAT applied, it will translate the internal IP addresses of these servers to a single IP address that is unique on the
Internet. NAT function not only eliminates the need for multiple public IP addresses but also provides a measure of
security for your LAN.
When the router receives an incoming IP packet requesting for access to your local server, the router will recognize
the service type according to the port number in this packet (e.g., port 80 indicates HTTP service and port 21
indicates FTP service). By specifying the port number, you tell the router which service should be forwarded to the
local IP address you specify.
After you setting the virtual server you should modify the filter rule whichever port and service you set on virtual
server. Because the firewall has protect the route by filter rule so that you should update the filter rule after you set up
virtual server.
This page shows all virtual server rules configured in your ADSL Router.
In the virtual server list table, you may select required entry to modify or delete it by clicking Modify or Delete.
Creating a New Server
In order to add new virtual server service entry, click Create a new server button.