diff --git a/target/linux/ar71xx/base-files/etc/defconfig/rb-433u/network b/target/linux/ar71xx/base-files/etc/defconfig/rb-433u/network
new file mode 100644
index 0000000000..13ffab69f6
--- /dev/null
+++ b/target/linux/ar71xx/base-files/etc/defconfig/rb-433u/network
@@ -0,0 +1,26 @@
+config interface loopback
+	option ifname	'lo'
+	option proto	'static'
+	option ipaddr	'127.0.0.1'
+	option netmask	'255.0.0.0'
+
+config interface lan
+	option ifname	'eth1'
+	option type	'bridge'
+	option proto	'static'
+	option ipaddr	'192.168.1.1'
+	option netmask	'255.255.255.0'
+
+config interface wan
+	option ifname	'eth0'
+	option proto	'dhcp'
+
+config switch
+        option name     'eth1'
+        option reset    '1'
+        option enable_vlan '1'
+
+config switch_vlan
+        option device   'eth1'
+        option vlan     '1'
+        option ports    '1 2 5'