TP-Link TL-R600VPN Configuration Manual page 202

System Tools
HTTP Server
Port
Redirect HTTP
to HTTPS
HTTPS Server
Port
Web Idle
Timeout
Enter the http server port for web management. The port number should be different
from other servers'. The default setting is 80. After changing the http server port, you
should access the interface by using IP address and the port number in the format of
192.168.0.1:1600.
Check the box to enable the function, then you will access the web management
interface by HTTPS protocol instead of HTTP protocol.
Enter the https server port for web management. The port number should be different
from other servers'. The default setting is 443. After changing the https server port,
you should access the interface by using IP address and the port number in the
format of https://192.168.0.1:1800.
Enter a session timeout time for the device. The web session will log out for security if
there is no operation within the session timeout time.
Admin Setup
Configuration Guide 194