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3. Choose an Internal Port in the drop-down box, which is 21 in this example.
4. Choose a protocol, which is Both in this example.
5.
Click .
6. Click OK on the bottom of the page.
The port forwarding rule is added when the page is shown as below.
Step 3 Assign a fixed IP address to the host where the server locates.
1. Choose Advanced > IP-MAC Binding.
2. Specifies an IP Address for the host of the server, which is 192.168.0.136 in this example.
3. Enter the MAC Address of the host of the server, which is D4:61:DA:1B:CD:89 in this
example.
4.
Click .
5. Click OK on the bottom of the page.
The IP-MAC binding rule is added when the page is shown as below.
---End
When completing the configurations, users from the internet can access the FTP server by visiting
“Intranet service application layer protocol name://WAN IP address of the router”. If the external