I got a bunch of self-hosted stuff and use a VPS that has a public IPv4 to access my services because my home network has only DS-Lite. My home server ist connected to the VPS using Wireguard.
Now I want to connect my Smartphone to my VPN to be able to access some local services remotely. I’m able to add a second peer to the Wireguard config on the VPS, but I’m struggeling to configure the AllowedIPs correctly.
The VPS apparently needs AllowedIPs 10.0.0.0/24 and 192.168.178.0/24, but the Smartphone as well for both to redirect request into my home network. But it’s not possible to configure the same IP ranges for two peers. What do I do?
EDIT: Solved: https://iliasa.eu/wireguard-how-to-access-a-peers-local-network/
This doesn’t address your issue specifically because I haven’t tried personally to use wireguard on my home server. Personally however I’ve been using Tailscale to connect to my home network remotely for DNS redirects through Pihole and to connect to my self-hosted services. I found Tailscale pretty easy to setup. If you can’t get Wireguard figured out you might give it a look as an alternative.
Tailscale is WireGuard. Just a fancy one.
Tailscale does NAT hole punching which really helps when dealing with systems behind NAT or restrictive firewalls. Your phone can connect directly to your home network without having to go through a VPS if you use Tailscale, even if your home internet connection doesn’t have a static IP.