The IP in the local area network will not be displayed on the external network. No matter what IP is set in your local area network, the only IP displayed on the network is the IP of the Internet server in your local area network. This IP is assigned to you by the local ISP, and you cannot change it yourself.

If you go online directly, you can find out where your actual IP is.

Unless you use a hidden proxy, you can use multiple proxies if you want to be more secure.