Solved it by split tunneling, so posting here if anyone ever gets stuck on a similar thing. Essentially made an exception for ip.changeip.com (which I use for use=web, web=ip.changeip.com) in VPN, so it goes through normal traffic, resulting in successful IP retrieval at Cloudflare.
Hello everyone, Hopefully someone can shed some light on this, I've been trying to crack this for days now with no success. I've successfully set up ddclient to obtain IP and send it to Cloudflare over API so it could be updated in case ISP gives me a new one. But the problem is I have Mullvad VPN on my Pi (intended to be part of a double-hop VPN), so ddclient basically picks up that public IP, instead the one on my router. My idea was to make ddclient just check my router, but I have Apple Time...