diff --git a/test/210_dns_multicast_test.sh b/test/210_dns_multicast_test.sh
index 59218552..8afedfb3 100755
--- a/test/210_dns_multicast_test.sh
+++ b/test/210_dns_multicast_test.sh
@@ -16,8 +16,8 @@ done
 run_on $HOST1 sudo $WEAVE launch
 run_on $HOST2 sudo $WEAVE launch $HOST1
 
-run_on $HOST1 sudo $WEAVE launch-dns 10.0.0.2/8
-run_on $HOST2 sudo $WEAVE launch-dns 10.0.0.3/8
+run_on $HOST1 sudo $WEAVE launch-dns 10.3.3.2/24 -debug
+run_on $HOST2 sudo $WEAVE launch-dns 10.3.3.3/24 -debug
 
 run_on $HOST2 sudo $WEAVE run $C2/24 -t --name=c2 -h seetwo.weave.local ubuntu
 run_on $HOST1 sudo $WEAVE run --with-dns $C1/24 --name=c1 -t aanand/docker-dnsutils /bin/sh
@@ -28,4 +28,7 @@ assert "echo $ok" "$C2"
 ok=$(docker -H tcp://$HOST1:2375 exec -i c1 dig +short -x $C2)
 assert "echo $ok" "seetwo.weave.local."
 
+ok=$(docker -H tcp://$HOST1:2375 exec -i c1 dig +short -x 8.8.8.8)
+assert "test -n \"$ok\" && echo pass" "pass"
+
 end_suite
diff --git a/test/300_fallback_dns_test.sh b/test/300_fallback_dns_test.sh
index 679d621a..808bc6e3 100755
--- a/test/300_fallback_dns_test.sh
+++ b/test/300_fallback_dns_test.sh
@@ -5,7 +5,7 @@
 start_suite "Resolve a non-weave address"
 
 run_on $HOST1 sudo $WEAVE stop-dns || true
-run_on $HOST1 sudo $WEAVE launch-dns 10.0.0.2
+run_on $HOST1 sudo $WEAVE launch-dns 10.2.6.2 -debug
 docker_on $HOST1 rm -f c1 || true
 
 run_on $HOST1 sudo $WEAVE run --with-dns 10.1.1.5/24 --name=c1 -t aanand/docker-dnsutils /bin/sh
@@ -13,4 +13,7 @@ run_on $HOST1 sudo $WEAVE run --with-dns 10.1.1.5/24 --name=c1 -t aanand/docker-
 ok=$(docker -H tcp://$HOST1:2375 exec -i c1 dig +short -t MX weave.works)
 assert "test -n \"$ok\" && echo pass" "pass"
 
+ok=$(docker -H tcp://$HOST1:2375 exec -i c1 dig +short -x 8.8.8.8)
+assert "test -n \"$ok\" && echo pass" "pass"
+
 end_suite