diff --git a/test/src/all.py b/test/src/all.py
index b0c098a..9e4f60f 100644
--- a/test/src/all.py
+++ b/test/src/all.py
@@ -776,7 +776,7 @@ def test_ipv4_udp_stun(iface):
                 tid == b"\x00" * 12
             ), "expected tid 0x000000000000000000000000, got {:x}".format(tid)
             expected_data = b"\x00\x01\x00\x08\x00\x01" + struct.pack(
-                ">HBBBB", sport, 192, 0, 0, 2
+                ">HBBBB", sport, 192, 0, 0, 0
             )
             assert (
                 data == expected_data
@@ -856,7 +856,7 @@ def test_ipv4_udp_stun_change_port(iface):
                 "expected tid 0x03a3b9464dd8eb75e19481474293845c, got %r" % tid
             )
             expected_data = b"\x00\x01\x00\x08\x00\x01" + struct.pack(
-                ">HBBBB", sport, 192, 0, 0, 2
+                ">HBBBB", sport, 192, 0, 0, 0
             )
             assert (
                 data == expected_data
diff --git a/test/test_masscanned.py b/test/test_masscanned.py
index 2ed9b82..f719007 100755
--- a/test/test_masscanned.py
+++ b/test/test_masscanned.py
@@ -55,10 +55,9 @@ tap = TunTapInterface(IFACE)
 conf.iface = resolve_iface(IFACE)
 
 # set interface
-subprocess.check_call(["ip", "addr", "add", "dev", IFACE, "192.0.0.2"])
+subprocess.check_call(["ip", "addr", "add", "dev", IFACE, "192.0.0.0/31"])
 subprocess.check_call(["ip", "link", "set", IFACE, "up"])
-subprocess.check_call(["ip", "route", "add", "192.0.0.1/32", "dev", IFACE])
-subprocess.check_call(["ip", "route", "add", "1.2.3.4/32", "dev", IFACE])
+subprocess.check_call(["ip", "route", "add", "1.2.3.4/32", "via", IPV4_ADDR])
 conf.route.resync()
 
 # start capture