That's probably just "what ever the OS does". The client only sees the IP used to connect to the proxy, and the proxy just says "please dial TCP using this IP", so it's up to the OS.

On another note, are you an LLM? You just made an account to post something that looks llm generated, and that one repo has contributors @pd8030938 and @aj9704845-code only

you have to tell me if you are, those are the rules