diff --git a/package/istoreos-files/files/etc/uci-defaults/99_docker_nat b/package/istoreos-files/files/etc/uci-defaults/99_docker_nat_fw4
similarity index 71%
rename from package/istoreos-files/files/etc/uci-defaults/99_docker_nat
rename to package/istoreos-files/files/etc/uci-defaults/99_docker_nat_fw4
index 6095ccfdff..c6ca0148cd 100644
--- a/package/istoreos-files/files/etc/uci-defaults/99_docker_nat
+++ b/package/istoreos-files/files/etc/uci-defaults/99_docker_nat_fw4
@@ -1,12 +1,14 @@
 #!/bin/sh
 
-uci -q get firewall.docker_nat >/dev/null || uci -q batch <<-EOF
+uci -q batch <<-EOF
 	set firewall.docker_nat=nat
 	set firewall.docker_nat.name='DockerNAT'
+	set firewall.docker_nat.family='ipv4'
 	set firewall.docker_nat.proto='all'
 	set firewall.docker_nat.src='lan'
 	set firewall.docker_nat.target='MASQUERADE'
 	set firewall.docker_nat.extra='-i docker0'
+	set firewall.docker_nat.src_ip='172.16.0.0/12'
 	commit firewall
 EOF