Wireguard server not using DNS settings that are defined in WAN settings

[GuardYaGrill]

Evening,

Ever since i set up my two PiHoles, one behind Proxmox and the other on Bare-Metal, I've been trying to get my Wireguard server that is hosted on my Asus RT-AX86U to make use of my DNS-Sinkholes, every forum topic i visit people say to just edit the DNS = field on the client to point to my LAN devices hosting the resolvers (Like this post for example) but that never seem to work for me and i can't figure out why. I should note that i do have a VPN Director rule for 10.6.0.0/24 to forward all queries through my VPN provider however, disabling this rule doesn't seem to make any difference.

Is there no way to force 10.6.0.0 followed by some CIDR to use a specific DNS? DNS Director only seems to accept MAC addresses so that doesnt work here, if i have to SSH into the router and run a command i'll do it, just got no idea on the command nor options i would need.

If anyone has suggestions it would be greatly appreciated! Thanks for reading

example client config & Images in case they're useful:

[Interface]

PrivateKey = REDACTED

Address = 10.6.0.2/32

DNS = 192.168.1.199, 192.168.1.14


[Peer]

PublicKey = REDACTED

AllowedIPs = 0.0.0.0/0,192.168.1.0/24

Endpoint = my.ddns.com:51820

PersistentKeepalive = 25

 

[ZebMcKayhan]

every forum topic i visit people say to just edit the DNS = field on the client to point to my LAN devices hosting the resolvers (Like this post for example) but that never seem to work for me

If I remember correctly, the router does not do anything about dns for Wireguard servers clients.

if the client are not using your set wireguard dns its a client issue. Have you turned off dns privacy in client console?

If its just not resolving anything its likely a pihole issue.

What type of issue do you have?

What client type, Windows? What Wireguard program?

 

[GuardYaGrill]

If I remember correctly, the router does not do anything about dns for Wireguard servers clients.

if the client are not using your set wireguard dns its a client issue. Have you turned off dns privacy in client console?

I suspect it’s defaulting to my ISP’s provided DNS but really got no way to prove it, both my LAN & WAN settings on my router are configured to use my
PiHole’s, my Piholes recognize queries from all LAN devices.

If its just not resolving anything its likely a pihole issue.

What type of issue do you have?

What client type, Windows? What Wireguard program?

I’m using the Wireguard client for iOS/iPadOS and I do get internet access connected to the Wireguard sever and I can access LAN devices however, PiHole doesn’t get queries from the Wireguard connected clients therefore I’m not benefiting from the many ad/malware blocklists I have.