diff --git a/README.md b/README.md
index 0ddcade9da48f4ae7fa3c0f09a742abec2fa9a3b..de66089b2c9903e1302f52b01d580506647e111f 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[PACKAGE]: ../../raw/master/mkp/check_radius-0.1.0-20240428.mkp "check_radius-0.1.0-20240428.mkp"
+[PACKAGE]: ../../raw/master/mkp/check_radius-0.1.1-20240428.mkp "check_radius-0.1.1-20240428.mkp"
 [PYRADLIB]: ../../raw/master/mkp/pyrad-2.4.0-240421.mkp "pyrad-2.4.0-240421.mkp"
 
 This is a (very) basic active RADIUS check. Tests if a RADIUS server is responsive (accept/reject/timeout). There is (limited) support to add AV-pairs to the RADIUS request.
diff --git a/mkp/check_radius-0.1.1-20240428.mkp b/mkp/check_radius-0.1.1-20240428.mkp
new file mode 100644
index 0000000000000000000000000000000000000000..eb41f06b9cd46531cfa8f267a7cf3d78e009815a
Binary files /dev/null and b/mkp/check_radius-0.1.1-20240428.mkp differ
diff --git a/source/gui/metrics/check_radius.py b/source/gui/metrics/check_radius.py
index 67790d936ba06f7cb8f4428512b353c4ffd0da2b..73f5873d787d8b0157774acb67a4122759f41edc 100644
--- a/source/gui/metrics/check_radius.py
+++ b/source/gui/metrics/check_radius.py
@@ -3,6 +3,7 @@
 #
 # License: GNU General Public License v2
 #
+#
 # Author: thl-cmk[at]outlook[dot]com
 # URL   : https://thl-cmk.hopto.org
 # Date  : 2024-04-21
@@ -38,6 +39,6 @@ graph_info['check_radius_time'] = {
 perfometer_info.append({
     'type': 'logarithmic',
     'metric': 'radius_response_time',
-    'half_value': 1.0,
-    'exponent': 10.0,
+    'half_value': 0.1,  # 100 ms
+    'exponent': 2.0,
 })
diff --git a/source/gui/wato/check_parameters/check_radius.py b/source/gui/wato/check_parameters/check_radius.py
index 71dd1d8c8eb0d373222188b480412f94e70da35e..c3092ecee7bb52f391faba2c9504e597abad67eb 100644
--- a/source/gui/wato/check_parameters/check_radius.py
+++ b/source/gui/wato/check_parameters/check_radius.py
@@ -6,7 +6,7 @@
 #
 # Author: thl-cmk[at]outlook[dot]com
 # URL   : https://thl-cmk.hopto.org
-# Date  : 2022-10-04
+# Date  : 2024-04-21
 # File  : wato/active_checks_radius.py
 #
 # 2024-01-01: modified for cmk 2.2.x
@@ -159,6 +159,18 @@ _service_type = Tuple(
         ),
     ],
 )
+_cisco_av_pair = Tuple(
+    title='Cisco-AVPair',
+    orientation='horizontal',
+    elements=[
+        FixedValue('Cisco-AVPair'),
+        TextInput(
+            size=20,
+            placeholder='method=mab',
+            allow_empty=False,
+        ),
+    ],
+)
 
 
 def _valuespec_active_checks_radius():
@@ -237,6 +249,7 @@ def _valuespec_active_checks_radius():
                                       elements=[
                                           _called_station_id,
                                           _calling_station_id,
+                                          _cisco_av_pair,
                                           _framed_mtu,
                                           _nas_identifier,
                                           _nas_ip_address,
diff --git a/source/lib/nagios/plugins/check_radius b/source/lib/nagios/plugins/check_radius
index 2147c1fb272c5e898485f36d218cd8947869ed58..79568a9aa11d8421b98513a86b0afbd3c9c42751 100755
--- a/source/lib/nagios/plugins/check_radius
+++ b/source/lib/nagios/plugins/check_radius
@@ -57,7 +57,7 @@ class Args(Namespace):
     state_not_expected_response: int
 
 
-VERSION = '0.1.0-20240428'
+VERSION = '0.1.1-20240428'
 
 cmk_state = {
     0: '',
@@ -74,7 +74,7 @@ response_str = {
 def parse_arguments(argv: Sequence[str]) -> Args:
     def _av_pair(s):
         try:
-            name, value = s.split(':')
+            name, value = s.split(':', 1)
             return name, value
         except ValueError:
             raise ArgumentTypeError("AV-Pairs must be in the form of name:vale")
@@ -106,18 +106,18 @@ def parse_arguments(argv: Sequence[str]) -> Args:
         help='secret RADIUS key',
     )
     parser.add_argument(
-        '--username', default='dummyuser', required=True,
+        '--username', default='dummyuser',
         help='user name to test with',
     )
     parser.add_argument(
-        '--password', default='dummypassword', required=True,
+        '--password', default='dummypassword',
         help='user password to test with',
     )
     #
     # optional request parameters
     #
     parser.add_argument(
-        '--auth_port', type=int, default=1812,
+        '--auth-port', type=int, default=1812,
         help='RADIUS authentication port to use.',
     )
     parser.add_argument(
@@ -197,7 +197,7 @@ def main(args=None):
     for av_pair in args.request_attribute:
         name, value = av_pair[0]
         try:
-            rad_req[name] = value
+            rad_req.AddAttribute(name, value)
         except TypeError:
             sys_stdout.write(
                 f'WARNING: attribute value must be the real value not the name of the '
@@ -233,7 +233,7 @@ def main(args=None):
         long_output.append(message)
 
         # third: check response time
-        message = f'Response time {response_time * 1000:.0f}ms'
+        message = f'Response time {response_time * 1000:.0f} ms'
         if args.max_response_time:
             warn, crit = args.max_response_time
             warn = warn
diff --git a/source/lib/nagios/plugins/dictionary b/source/lib/nagios/plugins/dictionary
index 125de2fc6581f18a66137b2e1ebddc3d3a05c292..f7a30cae93b7d47c1697415fa6dce42e35c6179c 100755
--- a/source/lib/nagios/plugins/dictionary
+++ b/source/lib/nagios/plugins/dictionary
@@ -444,3 +444,14 @@ VALUE   Tunnel-Medium-Type              Appletalk               12
 VALUE   Tunnel-Medium-Type              DecNet-IV               13
 VALUE   Tunnel-Medium-Type              Banyan-Vines            14
 VALUE   Tunnel-Medium-Type              E.164-NSAP              15
+
+#
+#  Cisco AV Pair
+#
+VENDOR          Cisco                           9
+
+BEGIN-VENDOR    Cisco
+
+ATTRIBUTE       Cisco-AVPair                            1       string
+
+END-VENDOR      Cisco
diff --git a/source/lib/nagios/plugins/dictionary.freeradius b/source/lib/nagios/plugins/dictionary.freeradius
deleted file mode 100755
index dc9fb226c925015c2165b2774e67c02ac63c10a0..0000000000000000000000000000000000000000
--- a/source/lib/nagios/plugins/dictionary.freeradius
+++ /dev/null
@@ -1,91 +0,0 @@
-# -*- text -*-
-# Copyright (C) 2015 The FreeRADIUS Server project and contributors
-#
-#	The FreeRADIUS Vendor-Specific dictionary.
-#
-# Version:	$Id: ea468da88509aeff96b6f0d38ebc97411b9775b3 $
-#
-#	For a complete list of Private Enterprise Codes, see:
-#
-#	http://www.isi.edu/in-notes/iana/assignments/enterprise-numbers
-#
-
-VENDOR		FreeRADIUS			11344
-
-BEGIN-VENDOR	FreeRADIUS
-
-#
-#  This attribute is really a bitmask.
-#
-ATTRIBUTE	FreeRADIUS-Statistics-Type		127	integer
-
-VALUE	FreeRADIUS-Statistics-Type	None			0
-VALUE	FreeRADIUS-Statistics-Type	Authentication		1
-VALUE	FreeRADIUS-Statistics-Type	Accounting		2
-VALUE	FreeRADIUS-Statistics-Type	Proxy-Authentication	4
-VALUE	FreeRADIUS-Statistics-Type	Proxy-Accounting	8
-VALUE	FreeRADIUS-Statistics-Type	Internal		0x10
-VALUE	FreeRADIUS-Statistics-Type	Client			0x20
-VALUE	FreeRADIUS-Statistics-Type	Server			0x40
-VALUE	FreeRADIUS-Statistics-Type	Home-Server		0x80
-
-VALUE	FreeRADIUS-Statistics-Type	Auth-Acct		0x03
-VALUE	FreeRADIUS-Statistics-Type	Proxy-Auth-Acct		0x0c
-
-VALUE	FreeRADIUS-Statistics-Type	All			0x1f
-
-#
-#   FreeRADIUS statistic result attributes
-#
-ATTRIBUTE   FreeRADIUS-Total-Access-Requests   128 integer
-ATTRIBUTE   FreeRADIUS-Total-Access-Accepts   129 integer
-ATTRIBUTE   FreeRADIUS-Total-Access-Rejects   130 integer
-ATTRIBUTE   FreeRADIUS-Total-Access-Challenges   131 integer
-ATTRIBUTE   FreeRADIUS-Total-Auth-Responses   132 integer
-ATTRIBUTE   FreeRADIUS-Total-Auth-Duplicate-Requests   133 integer
-ATTRIBUTE   FreeRADIUS-Total-Auth-Malformed-Requests   134 integer
-ATTRIBUTE   FreeRADIUS-Total-Auth-Invalid-Requests   135 integer
-ATTRIBUTE   FreeRADIUS-Total-Auth-Dropped-Requests   136 integer
-ATTRIBUTE   FreeRADIUS-Total-Auth-Unknown-Types   137 integer
-
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Access-Requests   138 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Access-Accepts   139 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Access-Rejects   140 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Access-Challenges   141 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Auth-Responses   142 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Auth-Duplicate-Requests   143 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Auth-Malformed-Requests   144 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Auth-Invalid-Requests   145 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Auth-Dropped-Requests   146 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Auth-Unknown-Types   147 integer
-
-ATTRIBUTE   FreeRADIUS-Total-Accounting-Requests   148 integer
-ATTRIBUTE   FreeRADIUS-Total-Accounting-Responses   149 integer
-ATTRIBUTE   FreeRADIUS-Total-Acct-Duplicate-Requests   150 integer
-ATTRIBUTE   FreeRADIUS-Total-Acct-Malformed-Requests   151 integer
-ATTRIBUTE   FreeRADIUS-Total-Acct-Invalid-Requests   152 integer
-ATTRIBUTE   FreeRADIUS-Total-Acct-Dropped-Requests   153 integer
-ATTRIBUTE   FreeRADIUS-Total-Acct-Unknown-Types   154 integer
-
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Accounting-Requests   155 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Accounting-Responses   156 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Acct-Duplicate-Requests   157 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Acct-Malformed-Requests   158 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Acct-Invalid-Requests   159 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Acct-Dropped-Requests   160 integer
-ATTRIBUTE   FreeRADIUS-Total-Proxy-Acct-Unknown-Types   161 integer
-
-ATTRIBUTE   FreeRADIUS-Queue-Len-Internal   162 integer
-ATTRIBUTE   FreeRADIUS-Queue-Len-Proxy   163 integer
-ATTRIBUTE   FreeRADIUS-Queue-Len-Auth   164 integer
-ATTRIBUTE   FreeRADIUS-Queue-Len-Acct   165 integer
-ATTRIBUTE   FreeRADIUS-Queue-Len-Detail   166 integer
-
-ATTRIBUTE   FreeRADIUS-Stats-Start-Time   176 date
-ATTRIBUTE   FreeRADIUS-Stats-HUP-Time   177 date
-
-ATTRIBUTE   FreeRADIUS-Queue-PPS-In   181 integer
-ATTRIBUTE   FreeRADIUS-Queue-PPS-In   182 integer
-
-
-END-VENDOR FreeRADIUS
\ No newline at end of file
diff --git a/source/packages/check_radius b/source/packages/check_radius
index bff1f3c988c75b7826db24dbb66a2de962974128..7bbd0d9f0586195edf103d66f1957d02c39f6099 100644
--- a/source/packages/check_radius
+++ b/source/packages/check_radius
@@ -6,17 +6,16 @@
                 ' - (limited) support to add AV-pairs to the RADIUS request\n'
                 ' - checks response code, response time and number of response '
                 'attributes\n'
-                '\n',
+                '\n'
+                'NOTE: this plugin needs _pyrad_ to work.\n',
  'download_url': 'https://thl-cmk.hopto.org',
  'files': {'checks': ['check_radius'],
            'gui': ['metrics/check_radius.py',
                    'wato/check_parameters/check_radius.py'],
-           'lib': ['nagios/plugins/check_radius',
-                   'nagios/plugins/dictionary',
-                   'nagios/plugins/dictionary.freeradius']},
+           'lib': ['nagios/plugins/check_radius', 'nagios/plugins/dictionary']},
  'name': 'check_radius',
  'title': 'Check RADIUS',
- 'version': '0.1.0-20240428',
+ 'version': '0.1.1-20240428',
  'version.min_required': '2.2.0b1',
  'version.packaged': '2.2.0p24',
  'version.usable_until': None}