diff --git a/etc/network/interfaces.d/bat0 b/etc/network/interfaces.d/bat0
new file mode 100644
index 0000000..195b15b
--- /dev/null
+++ b/etc/network/interfaces.d/bat0
@@ -0,0 +1,26 @@
+
+#Freifunk Config
+# device: bat0
+iface bat0 inet manual
+post-up ifconfig $IFACE up
+    ##Einschalten post-up:
+    # IP des Gateways am B.A.T.M.A.N interface:
+    post-up ip addr add 10.50.96.1/21 dev $IFACE
+    # Regeln, wann die fff Routing-Tabelle benutzt werden soll: 
+    post-up ip rule add iif $IFACE table fff
+    post-up ip rule add from 10.0.0.0/8 table fff	
+    post-up ip rule add to 10.0.0.0/8  table fff
+    # Route in die Aschaffenburger Hood:	
+#    post-up ip route add 10.50.96.0/21 dev $IFACE table fff
+    post-up ip route replace 10.50.96.0/21 dev $IFACE proto static table fff
+    # Start des DHCP Servers:
+    post-up invoke-rc.d isc-dhcp-server restart
+
+    ##Ausschalten post-down:
+    # Loeschen von oben definieren Routen, Regeln und Interface: 
+    post-down ip route del 10.50.96.0/21 dev $IFACE table fff
+    post-down ip rule del from 10.0.0.0/8 table fff
+    post-down ip rule del to 10.0.0.0/8 table fff
+    post-down ip rule del iif $IFACE table fff
+    post-down ifconfig $IFACE down
+