diff --git a/iptables/rules4.conf b/iptables/rules4.conf
index 435fada..ca650ba 100644
--- a/iptables/rules4.conf
+++ b/iptables/rules4.conf
@@ -19,6 +19,7 @@
 -A FORWARD -i wg0 -j ACCEPT
 -A FORWARD -o wg0 -j ACCEPT
 -A FORWARD -m conntrack --ctstate INVALD -j DROP
+-A FORWARD -j REJECT
 -A FILTERS -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
 -A FILTERS -m conntrack --ctstate NEW -p tcp --dport 25 -j ACCEPT
 -A FILTERS -m conntrack --ctstate NEW -p tcp --dport 80 -j ACCEPT