diff --git a/tests/hwsim/hostapd.py b/tests/hwsim/hostapd.py
index 2edbdb421..9ac7c9c53 100644
--- a/tests/hwsim/hostapd.py
+++ b/tests/hwsim/hostapd.py
@@ -193,6 +193,15 @@ class Hostapd:
                 vals[name] = value
         return vals
 
+    def get_mib(self):
+        res = self.request("MIB")
+        lines = res.splitlines()
+        vals = dict()
+        for l in lines:
+            [name,value] = l.split('=', 1)
+            vals[name] = value
+        return vals
+
 def add_ap(ifname, params, wait_enabled=True):
         logger.info("Starting AP " + ifname)
         hapd_global = HostapdGlobal()
@@ -204,7 +213,8 @@ def add_ap(ifname, params, wait_enabled=True):
         hapd.set_defaults()
         fields = [ "ssid", "wpa_passphrase", "nas_identifier", "wpa_key_mgmt",
                    "wpa",
-                   "wpa_pairwise", "rsn_pairwise", "auth_server_addr" ]
+                   "wpa_pairwise", "rsn_pairwise", "auth_server_addr",
+                   "acct_server_addr" ]
         for field in fields:
             if field in params:
                 hapd.set(field, params[field])
diff --git a/tests/hwsim/test_radius.py b/tests/hwsim/test_radius.py
new file mode 100644
index 000000000..0818270c2
--- /dev/null
+++ b/tests/hwsim/test_radius.py
@@ -0,0 +1,58 @@
+#!/usr/bin/python
+#
+# RADIUS tests
+# Copyright (c) 2013, Jouni Malinen <j@w1.fi>
+#
+# This software may be distributed under the terms of the BSD license.
+# See README for more details.
+
+import logging
+logger = logging.getLogger()
+import time
+
+import hostapd
+
+def connect(dev, ssid, wait_connect=True):
+    dev.connect(ssid, key_mgmt="WPA-EAP", scan_freq="2412",
+                eap="PSK", identity="psk.user@example.com",
+                password_hex="0123456789abcdef0123456789abcdef",
+                wait_connect=wait_connect)
+
+def test_radius_auth_unreachable(dev, apdev):
+    """RADIUS Authentication server unreachable"""
+    params = hostapd.wpa2_eap_params(ssid="radius-auth")
+    params['auth_server_port'] = "18139"
+    hostapd.add_ap(apdev[0]['ifname'], params)
+    hapd = hostapd.Hostapd(apdev[0]['ifname'])
+    connect(dev[0], "radius-auth", wait_connect=False)
+    ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED"])
+    if ev is None:
+        raise Exception("Timeout on EAP start")
+    logger.info("Checking for RADIUS retries")
+    time.sleep(4)
+    mib = hapd.get_mib()
+    if "radiusAuthClientAccessRequests" not in mib:
+        raise Exception("Missing MIB fields")
+    if int(mib["radiusAuthClientAccessRetransmissions"]) < 1:
+        raise Exception("Missing RADIUS Authentication retransmission")
+    if int(mib["radiusAuthClientPendingRequests"]) < 1:
+        raise Exception("Missing pending RADIUS Authentication request")
+
+def test_radius_acct_unreachable(dev, apdev):
+    """RADIUS Accounting server unreachable"""
+    params = hostapd.wpa2_eap_params(ssid="radius-acct")
+    params['acct_server_addr'] = "127.0.0.1"
+    params['acct_server_port'] = "18139"
+    params['acct_server_shared_secret'] = "radius"
+    hostapd.add_ap(apdev[0]['ifname'], params)
+    hapd = hostapd.Hostapd(apdev[0]['ifname'])
+    connect(dev[0], "radius-acct")
+    logger.info("Checking for RADIUS retries")
+    time.sleep(4)
+    mib = hapd.get_mib()
+    if "radiusAccClientRetransmissions" not in mib:
+        raise Exception("Missing MIB fields")
+    if int(mib["radiusAccClientRetransmissions"]) < 2:
+        raise Exception("Missing RADIUS Accounting retransmissions")
+    if int(mib["radiusAccClientPendingRequests"]) < 2:
+        raise Exception("Missing pending RADIUS Accounting requests")