Wireguard for IPV6. How far off am I?

[Pocket_Sevens]

Good day everyone.  I am successfully running Wireguard on my OPNSense installation.  I am wondering why I didn't use it sooner...fast connection, stays on even when my mobile devices lock, and I can access my home network.  It is an awesome solution.

I noticed that I can use my Wireguard VPN whenever I'm connected to a WiFi network.  However, it doesn't work on cellular.  Doing some research, I believe it's because cellular connections use IPV6.  (Please let me know if I am correct or not.)

So, looking at my config, I have some idea as to my next steps but could use some confirmation.  I am attaching screenshots on my current configuration.

Here's what I'm thinking:

• All of my Firewall rules only point to IPV4. I'm assuming I need to switch these rules to use both IPV4+IPV6.
• Do I need to modify my gateway interfaces settings?
• Currently, my DDNS settings are passing arguments for IPV4.  I'm assuming I'll need to have my DDNS pass an IPV6 address.  Is that correct?
• What changes do I need to do for my peers to use IPV6?

Thank you in advance.

Screenshot 1 - Wireguard Interface settings

[Pocket_Sevens]

Wireguard Instance Screenshot

[Pocket_Sevens]

Wireguard Firewall Rule

[Pocket_Sevens]

WAN Firewall Rule

[Pocket_Sevens]

WAN Interface Configuration