Passthrough NIC0 and NIC1 to KVM gateway, then connect host to KVM gateway.

Passthrough NIC0 and NIC1 to KVM gateway, then connect host to KVM gateway

I am looking for a freelancer with beginner level expertise to help me with the following project requirements:

Operating System:
- The host machine is running on Linux.

Virtualization Software:
- I have chosen QEMU/KVM as the specific virtualization software for this project.

Project Details:
- The main task is to passthrough NIC0 and NIC1 to the KVM gateway.
- The freelancer will need to establish a connection between the host and the KVM gateway.
I'm currently using a bridged modem to host Ubuntu 22.04 LTS Desktop.
Ubuntu is then bridged to the KVM gateway/router pfSense.
An issue has surfaced where the KVM gateway WAN is not the public WAN IP address. Therefore, the KVM gateway WAN IP address is to be passed through to the NIC0 and KVM gateway LAN to the NIC1. This leaves the Host OS to be connected to the KVM gateway LAN interface and other KVMs should connect to the KVM gateway LAN.
GUI won't let me change the network and after a reboot, the original network setup returns.

Ideal Skills and Experience:
- Basic knowledge and understanding of Linux operating system.
- Familiarity with QEMU/KVM virtualization software.
- Ability to configure network interfaces and establish connections.

Note: The freelancer should have a beginner level of expertise in order to complete this project successfully.