Open Port is a feature that redirects a connection request on several ports of router's WAN to host on router's LAN. While traversing the NAT, Open Port will not change the destination port. This document introduces how to set up open port on Vigor Router and some troubleshooting tips if it's not working as expected. In this example, we would like to provide RDP (Remote Desktop Protocol) access to a computer on LAN for Internet clients.
Since firmware version 3.8.4, we can also specify Source IP to limit the access to authorized IP only.
1. Go to NAT >> Port Redirection, and click on an available index to add a new profile.
2. Edit the profile as follows:
3. With the above settings, when the connection requests sent to the router on port 3389, the router will forward the request to private IP 192.168.1.10. Now, the clients from the Internet can access the server on router's LAN by router's WAN IP and the defined public port.
Since firmware version 3.8.4, the network administrator can specify the source IP in Port Redirection and Open Ports. This function can be used in the situation we only want to allow some of the IPs to access the server behind the router, and increase the level of security while allowing Internet access.
For example, if the network administrator only allows the IP 126.96.36.199 to use the RDP service on 192.168.1.10.
1. Go to Object Setting >> IP Object, select one of the profile indexes.
2. Edit the profiles as follows:
3. Go back to NAT >> Port Redirection, select the profile set for the RDP, select Source IP, click OK to save. Now, the router will only open the ports for IP 188.8.131.52 and redirect it to the RDP server.
If the open port is not working as expected, please check:
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