The program supports operation through a proxy server with the possibility of authentication, i.e., entering your name and password. Proxy server is not a NOIP. It is a separate application used to proxy traffic of the program.
The program can operate through a proxy server using HTTP or Socks5 protocols, with the possibility of authentication by the user name and password.
On the Viewer side, you can enable the proxy server on the Network tab (Tools — Options).
On the Server side, you can enable the proxy server on the Network tab in the server settings.
On the side of the Viewer, set personal proxy settings for each connection, connection Properties — Network tab, use personal proxy.