WireGuard automatically initiate using IPv6, but need IPv4

[samleemc]

Hi there,

My pfSense have setup WireGuard to connect to my another server that host WireGuard using a docker container. For some reason, the docker container only support IPv4.

However, the domain for the server has both A and AAAA record, and hence, pfsense pick up the IPv6 address and try to initiate handshake using IPv6, and it fail as it should.

Is there a way I can force a VPN or interface to use IPv4 instead of IPv6?

Thanks
Sam