diff --git a/roles/lmn_vm/files/vm-run b/roles/lmn_vm/files/vm-run
index eef1010..293ed4f 100755
--- a/roles/lmn_vm/files/vm-run
+++ b/roles/lmn_vm/files/vm-run
@@ -16,6 +16,7 @@ options:
        --cpu num         number of CPUs
        --os OS           operating system (win10|linux|..)
        --data-disk size  additional data-disk
+       --bridge virbrX   additional network interface on bridge virbrX
        --options options additional options for virt-install command
 EOF
 }
@@ -109,7 +110,7 @@ LIBVIRTOPTS=""
 
 source /etc/lmn/vm.conf
 
-TEMP=$(getopt -o no:ps --long new,options:,persistent:,system,memory:,data-disk:,cpu:,os:,help -n $0 -- "$@")
+TEMP=$(getopt -o no:ps --long new,options:,persistent:,system,memory:,data-disk:,cpu:,bridge:,os:,help -n $0 -- "$@")
 if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
 
 eval set -- "$TEMP"
@@ -145,6 +146,12 @@ while true; do
             LIBVIRTOPTS="${LIBVIRTOPTS} --vcpu $2"
 	    shift 2
 	    ;;
+    --bridge )
+            if ip link | grep $2; then
+               LIBVIRTOPTS="${LIBVIRTOPTS} --network=bridge=$2,model.type=virtio"
+            fi
+	    shift 2
+	    ;;
     --os )
             LIBVIRTOSINFO=$2
 	    shift 2
@@ -191,11 +198,6 @@ if  ! virsh --connect="${QEMU}" list | grep "${VM_NAME}-clone"; then
 
     # finally, create the new vm
 
-    if ip link | grep virbr1; then
-       LIBVIRTOPTS="${LIBVIRTOPTS} --network=bridge=virbr1,model.type=virtio"
-    fi
-
-
 # TODO
 #    # find macvtap interface MAC address:
 #    MAC="$(ip link | grep -A1 "vm-macvtap" |
@@ -209,9 +211,10 @@ if  ! virsh --connect="${QEMU}" list | grep "${VM_NAME}-clone"; then
 	     --clock hpet_present=yes \
 	     --features hyperv.synic.state=on,xpath1.set=./hyperv/vpindex/@state=on \
 	     --memorybacking source.type=memfd,access.mode=shared \
-	     --disk "${VM_DIR}/${VM_NAME}-clone.qcow2" \
+	     --disk "${VM_DIR}/${VM_NAME}-clone.qcow2",driver.discard=unmap,target.bus=scsi,cache=writeback \
 	     --network=bridge=virbr0,model.type=virtio \
              --filesystem driver.type=virtiofs,accessmode=passthrough,target.dir=virtiofs,xpath1.set=./source/@socket="/run/user/${UID}/virtiofs-${VM_NAME}.sock" \
+	     --controller type=scsi,model=virtio-scsi \
 	     --check path_in_use=off \
              --connect="${QEMU}" \
 	     --noautoconsole \