Is it possible to create VM with NAT Interface?

[bahaaza]

The version I am using is TrueNAS-SCALE-22.12.1
I have one physical network interface with public static IP on it and I am using a default ip4 gateway suitable to my static IP.

Is there a way to create a NAT interface over my physical and then attach it to the virtual machine?
I tried a few things without success I can't access the internet from the VM.

I hope that my question is clear I am not sure how to explain what I am looking for because this feature is working by default on Ubuntu KVM,
and I am not sure what is the default network configuration there.

 

[sretalla]

First point would be to understand if you really mean "public IP"?

TrueNAS isn't a product that should be exposed directly to the public Internet.

If you have the intention to create a virtual switch (called a bridge in TrueNAS) and attach your VM to that on a different subnet (a private one) to the host, then use the host to route and/or NAT to/from that subnet... yes it can be done.

I don't think there's a great number of step-by-step guides out there for that as it's really an edge case (even completely discouraged if you're talking about the host on the Internet directly).