virt-install --name pfsense --ram 1024 --vcpus=1 --os-variant freebsd7 --hvm --vnc \
--controller type=scsi,model=virtio-scsi --disk path=pfSense-2.2.2.raw,size=4,bus=scsi \
--network=bridge:br0,model=virtio \
--cdrom pfSense-LiveCD-2.2.2-RELEASE-amd64.iso
Configure vtnet0 as WAN.
Post-configuration