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 4807e61..5a1b9aa 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
@@ -4,3 +4,6 @@ ebtables -X
 
 iptables -F
 iptables -X
+
+ip6tables -F
+ip6tables -X