diff --git a/src/packages/fff/fff-firewall/Makefile b/src/packages/fff/fff-firewall/Makefile
index 6a58cabc..3bf49c35 100644
--- a/src/packages/fff/fff-firewall/Makefile
+++ b/src/packages/fff/fff-firewall/Makefile
@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=fff-firewall
-PKG_RELEASE:=5
+PKG_RELEASE:=6
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)
 
diff --git a/src/packages/fff/fff-firewall/files/usr/lib/firewall.d/00-prepare b/src/packages/fff/fff-firewall/files/usr/lib/firewall.d/00-prepare
index 5a1b9aaf..d3f3da28 100644
--- a/src/packages/fff/fff-firewall/files/usr/lib/firewall.d/00-prepare
+++ b/src/packages/fff/fff-firewall/files/usr/lib/firewall.d/00-prepare
@@ -5,5 +5,11 @@ ebtables -X
 iptables -F
 iptables -X
 
+iptables -F -t nat
+iptables -X -t nat
+
+iptables -F -t mangle
+iptables -X -t mangle
+
 ip6tables -F
 ip6tables -X