Hypervisor configuration not adding 2 NICs for virtual OPNsense

[eiger3790]

I am trying to build:
1 bridged router.
2 physical wired NICs for WAN and LAN.
1 machine running Debian based OS, running hypervisor KVM/Qemu/Virt manager.
1 VM router OPNsense.

The machine sees the 2 NICs, however the hypervisor seems to set up 1 virtual bridge?
I think I need 2 bridges to see the 2 NICs?
Here's my network topology, attached.
Configuring the network has a few options like
GUI: Virtual Manager.
TUI: Network scripts, Nmcli tool or Virsh command.
I tried the GUI, but Virtual Manager seems to show 1 NIC using Virtual Network Interface with a Network source: Virtual network 'default':NAT.  I'm wondering why Virtual Manager only shows 1 NIC and a NIC unrelated to my 2 physical NICs?
Virtual manager has an option in Virtual Network Interface Network source to select Host device enp2s0:macvtap.  Maybe this should be selected for 1 of my 2 physics NICs?
Creating a new VM in the hypervisor offers an option at Network selection as default, Virtual network 'default':NAT, however maybe I should select the option: Host device enp2s0:macvtap, Source mode: Bridge?
Regardless, after selecting enp2s0:macvtap, the VM router OPNsense installs and only shows 1 LAN (vtnet0) -> v4: 192.168.1.1/24.
In VM router OPNsense install, I select 1) Assign interfaces and the only valid interfaces are:
vtnet0 52:54:00:6c:84:7a VirtIO Networking Adapter.
This interface is Virtual Manager's NIC MAC address, not any of my 2 physical NICs' MAC addresses?

I tried the TUI Network scripts, creating this file in /etc/network/interfaces, however same issue?

Code: [Select]

# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:

# ip -c a, for interface details.
# loopback device.
auto lo
iface lo inet loopback

# WAN port (NIC1, top of case with I/O shield stuff).
auto enp3s0
iface enp3s0 inet manual

# LAN port (NIC2, bottom of case at PCIe slot).
auto enp2s0
iface enp2s0 inet manual

# WAN bridge OPNsense is connected with veth0.  Veth0 is the FreeBSD Network Interface Name for virtio Network devices.
auto virbr0
iface virbr0 inet static
  bridge_ports enp3s0
  bridge_stp off
  bridge-fd 0

# LAN bridge OPNsense is connected with veth1.
# Gateway is OPNsense.
auto virbr1
iface virbr1 inet static
  address 192.168.1.120/24
  gateway 192.168.1.170
  bridge_ports enp2s0
  bridge-stp off
  bridge-fd 0
  bridge-pvid 4095
  bridge-vlan-aware yes
  bridge-vids 1-4044
# Save, exit and restart networking service:~$ sudo systemctl restart NetworkManager > Enter.
What am I doing wrong please?

[eiger3790]

I solved this by using VM GUI.