diff --git a/Dockerfile.m4 b/Dockerfile.m4
index 3bb9ad9..a368cad 100644
--- a/Dockerfile.m4
+++ b/Dockerfile.m4
@@ -102,7 +102,9 @@ RUN export DEBIAN_FRONTEND=noninteractive \
 ENV VM_CPU=2
 ENV VM_RAM=1024M
 ENV VM_KEYBOARD=en-us
-ENV VM_NET_OPTIONS=
+ENV VM_NET_GUESTFWD_OPTIONS=guestfwd=tcp:10.0.2.254:445-cmd:"nc 127.0.0.1 445"
+ENV VM_NET_HOSTFWD_OPTIONS=hostfwd=tcp::2323-:23,hostfwd=tcp::5151-:51,hostfwd=tcp::3389-:3389
+ENV VM_NET_EXTRA_OPTIONS=
 ENV VM_KVM=true
 ENV SVDIR=/etc/service/
 
diff --git a/scripts/service/qemu/run b/scripts/service/qemu/run
index e0ff811..43ef628 100755
--- a/scripts/service/qemu/run
+++ b/scripts/service/qemu/run
@@ -5,11 +5,9 @@ set -eu
 set --
 set -- "$@" -smp "${VM_CPU:?}" -m "${VM_RAM:?}"
 set -- "$@" -serial stdio -monitor unix:/run/qemu-monitor,server,nowait -device VGA -display vnc=:0
+set -- "$@" -device e1000,netdev=n0 -netdev user,id=n0,"${VM_NET_GUESTFWD_OPTIONS?}","${VM_NET_HOSTFWD_OPTIONS?}","${VM_NET_EXTRA_OPTIONS?}"
 set -- "$@" -drive file=/var/lib/qemu/reactos.qcow2,index=0,media=disk,format=qcow2
-set -- "$@" -netdev user,id=n0,guestfwd=tcp:10.0.2.254:445-cmd:'nc 127.0.0.1 445',hostfwd=tcp::5151-:51,"${VM_NET_OPTIONS?}"
-set -- "$@" -device e1000,netdev=n0
-set -- "$@" -usb -device usb-tablet
-set -- "$@" -k "${VM_KEYBOARD:?}"
+set -- "$@" -usb -device usb-tablet -k "${VM_KEYBOARD:?}"
 
 if [ "${VM_KVM:?}" = true ] && [ -c /dev/kvm ]; then
 	set -- "$@" -accel kvm