diff --git a/tests/dual-proto.sh b/tests/dual-proto.sh
index 9c862e4..9b0ef66 100755
--- a/tests/dual-proto.sh
+++ b/tests/dual-proto.sh
@@ -36,8 +36,8 @@ docker run --volumes-from $OVPN_DATA --rm $IMG ovpn_listclients | grep $CLIENT_U
 #
 # Fire up the server
 #
-sudo iptables -N DOCKER
-sudo iptables -I FORWARD -j DOCKER
+sudo iptables -N DOCKER || echo 'Firewall already configured'
+sudo iptables -I FORWARD -j DOCKER || echo 'Forward already configured'
 
 # run in shell bg to get logs
 docker run --name "ovpn-test-udp" --volumes-from $OVPN_DATA --rm -p 1194:1194/udp --privileged $IMG &