+# accept ESP for IPSec
+$IPTABLES -A INPUT -p esp -j ACCEPT
+$IP6TABLES -A INPUT -p esp -j ACCEPT
+
+# accept all IPSec traffic
+$IPTABLES -A INPUT -m policy --dir in --pol ipsec -j ACCEPT
+$IP6TABLES -A INPUT -m policy --dir in --pol ipsec -j ACCEPT
+
+./services.sh ${EXT_IF}