diff --git a/tests/hwsim/test_radius.py b/tests/hwsim/test_radius.py
index 75540fc77..891d6819f 100644
--- a/tests/hwsim/test_radius.py
+++ b/tests/hwsim/test_radius.py
@@ -16,7 +16,7 @@ import threading
 import time
 
 import hostapd
-from utils import HwsimSkip
+from utils import HwsimSkip, require_under_vm
 
 def connect(dev, ssid, wait_connect=True):
     dev.connect(ssid, key_mgmt="WPA-EAP", scan_freq="2412",
@@ -124,6 +124,7 @@ def test_radius_acct_unreachable2(dev, apdev):
 
 def test_radius_acct_unreachable3(dev, apdev):
     """RADIUS Accounting server initially unreachable, but then available"""
+    require_under_vm()
     subprocess.call(['ip', 'ro', 'replace', 'blackhole', '192.168.213.18'])
     as_hapd = hostapd.Hostapd("as")
     as_mib_start = as_hapd.get_mib(param="radius_server")
diff --git a/tests/hwsim/utils.py b/tests/hwsim/utils.py
index cd71365ba..43dd33177 100644
--- a/tests/hwsim/utils.py
+++ b/tests/hwsim/utils.py
@@ -33,3 +33,9 @@ class alloc_fail(object):
         if type is None:
             if self._dev.request("GET_ALLOC_FAIL") != "0:%s" % self._funcs:
                 raise Exception("Allocation failure did not trigger")
+
+def require_under_vm():
+    with open('/proc/1/cmdline', 'r') as f:
+        cmd = f.read()
+        if "inside.sh" not in cmd:
+            raise HwsimSkip("Not running under VM")