Cisco AAA/Identity/Nac :: 4506 - ACS RADIUS Request Dropped 11051

Jan 10, 2012

Our ACS v5.2.0.26 started to drop connection from wired and wireless connections, with a "Radius Request Dropped" message. The detailed message is : "RADIUS Request dropped : 11051 RADIUS packet contains invalid state attribute".This message is usually preceded with a "RADIUS Request dropped : 24444 Active Directory operation has failed because of an unspecified error in the ACS" error.The communication with Active Directory seems to be ok since worstations are getting a valid ip adress when connected to a non 802.1x switch port (Cisco 4506).

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Cisco AAA/Identity/Nac :: ACS 5.2 Error Message 5405 RADIUS Request Dropped

Feb 22, 2011

The error message "5405  RADIUS Request dropped", what does it mean ? We have implemented 802.1X on a C4506 switch running IOS 12.2(53), it has worked fine for about 3 months but now I get users not able to authenticate. In the loggs on the ACS I get the obove message.
 
ACS 5.2 is running 5.2.0.26 Build 3075.

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Cisco :: 5508 RADIUS Server Failed To Respond To Request

May 22, 2013

We are experiencing a lot of these RADIUS failed to respond messages on our WLC's leading to a lot of RADIUS server hopping within the WLC.We are using Cisco 5508's, 1142 AP's and a Microsoft NPS RADIUS backend. SSID is WPA2+802.1xThe first workaround to this problem was to disable aggressive failover on the WLC. But this is only a temporary fix, because in the end, there will be more than 3 consequetive clients, failing to authenticate to the WLAN network. As a result, the WLC will swap to the 2nd RADIUS server configured.When we dived into this a little bit more we saw the following messages being logged on the RADIUS backend at the time we saw the RADIUS messages on the WL:Event ID: 6274: Network Policy Server discarded the request for a user.

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Cisco AAA/Identity/Nac :: 4506 - ACS 4.2 Authentication With Certificates

Jun 7, 2012

I have a Cisco 4506 With IOS 12.2 54SG1
  
Iam new on Acs 4.2 and i want to use Certificates to authenticate my windows XP Client and Igels.
 
On Windows Xp i selected : IEEE 802.1X Authentication enable EAP (Peap)
  
But i dont understand the Certification of ACS 4.2.
 
I generated a Self-Signed Certificate. Is this right ? and under installed Certificates the Certificate Status is okay.
 
Do i have to create for each windows Machine one user Account under user-Setup to authenticate the Machine?
 
Where do Windows Xp know whitch Certificate he have to take ?
 
I configures the Switch on Global Configuration like this:

aaa authentication login default group tacacs+ enable
aaa authentication enable default group tacacs+ enable

[Code].....

Iam triying to configure ist szenario till 4 days and it still dont work.. On Windows i Only get the Error" authentication failed" on the Switch the  same : dot1x : Authfailed

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AAA/Identity/Nac :: Status-Server Request And ACS SE 4.2?

Mar 31, 2013

According to traces collected in mt ACS SE 4.2, it would seem that the underlying software does not support the RADIUS Status-Server request. Is this request type is supported in version 5.*?

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Cisco AAA/Identity/Nac :: ASC5.2 - How To Tell Which Domain Controller Request Is Sent

Sep 12, 2011

Within ACS 5.2, does any know of a way to see which specific domain controller a request is sent to?

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Cisco AAA/Identity/Nac :: ACS 5.1 - How To Generate Certificate Signing Request On Secondary

Oct 3, 2012

I have a pair of ACS appliances running 5.1 code. The appliances are set up as a replicated pair. I have valid local and trusted certificate authority certificates on the primary.

The trusted certificate authority certificate gets replicated to the secondary. Obviously the local certificate doesn't get replicated. I need to generate a certificate signing request on the secondary but it doesn't seem to allow you to do it.  

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Cisco AAA/Identity/Nac :: 1121 - Configuring ACS To Strip Domain From Request And Sending It To AD

Jul 24, 2011

We are currently evaluating a ACS 1121 running 5.2, we are trying to configure this to Authenticate eap-peap requests.

Our users will be using credentials in a username@example.com format, if the server sees a request using username@anotherrealm.com then it would forward the request to a external proxy radius server, if the server saw a request for our domain it would strip off the @example.com part and authenticate against AD.
 
Im finding it hard locating documentation to tell the server if a request comes from a NAS using username@example.com then strip @example.com and authenticate username against AD.

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Cisco AAA/Identity/Nac :: 3750 AAA Sever Address Is Dropped After Restart Sometimes

Jan 20, 2013

We have Cisco 3750G switches and have them setup to use Cisco ACS 5.2.0.26.5. Some switches after they are restarted and we know that the config is saved the server address for the AAA authentication is dropped. We are running IOS c3750-ipbasek9-mz.122-40.SE. I have started to upgrade switches to c3750-ipbasek9-mz.122-50.SE5 to fix an issue with reporting high drops in Solarwinds.

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Cisco AAA/Identity/Nac :: Accounting Setup On WLC 440x / 5508 ACS Takes It As Authentication Request And Fail

Dec 8, 2011

accounting in ACS 5.3. When I setup accounting on WLC 440x / 5508 ACS takes them as an authentication request and fail.
 
Here are some logs what I see in acsview:
 
Dec 9,11 6:05:11.783 PM
Radius authentication failed for USER: navrka2  MAC: a.b.c.d  AUTHTYPE: Radius authentication failed
 ACS Session ID:
dc2aaa1v/112555963/420
Audit Session ID:
0a9a01d7000001fd4ee23a3d
Tunnel Details:

[code]...

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Cisco AAA/Identity/Nac :: ACS 5.X And Radius Using AD

Oct 30, 2011

I am currently useing ACS 5.2 and have no problem using Tacacs+ with AD access.

But with Radius it seems I can only get the Local identity store to work, need to do something special to get Radius to work with active directory with Cisco ACS?

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AAA/Identity/Nac :: IPS / IDS Authentication With Cisco Radius ACS 5.2

Nov 22, 2011

I have been trying to get our IPS (ASA-SSM-10 and 4260) to authenticate with Cisco Radius ACS 5.2 and they are not working. However, I was able to get them working with Microsoft Radius. Below is the logs from the IPS:
  
evStatus: eventId=1321566464942057375 vendor=Cisco  originator:    hostId: NACAIRVIDLAB1    appName: authentication    appInstanceId: 350  time: 2011/11/23 17:50:38 2011/11/23 09:50:38 GMT-08:00  controlTransaction:

[Code].....

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Cisco AAA/Identity/Nac :: ACS 5.x RADIUS VSA Configuration?

Dec 3, 2011

I need to configure RADIUS VSA configuration for a my alvarion device. Following are the attributes that need to be configured.
 
- Packet Data Flow ID (ID 1, integer16)
- Direction (ID 4, integer8)
- Transport Type (ID 6, integer8)
- UplinkQoSID (ID 7, integer8)
- DownlinkQoSID (ID 8, integer8)

[code]....

I was able to configure the first 6 attributes, how can I add the Sub - TLV's ClassifiedID, Priority, VLAN-ID and Classifier Direction which come under Classifier. Don't see any option for that in ACS 5.x

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Cisco AAA/Identity/Nac :: ACS 4.2.1.15 RADIUS Stops After A While

Jan 31, 2012

We have 2 ACS 4.2.1 servers in Windows 2003 with SP2 installed. We have updated the first ACS to the latest patches for Windows. After that we started having problems. CSRadius either stops by itself or when some time passes we get the following error in Failed attempts "Unknown error". When we restart the ACS services by the GUI, it resumes until the next time it stops.Do you happen to know if we have any bugs related to Windows patches?

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Cisco AAA/Identity/Nac :: Configuring 802.1x With ACS 4.2 (RADIUS)?

Mar 25, 2013

I am trying to configure AAA authentication and authorization with Cisco 3725 (IOS 12.4(17)) for 802.1x and ACS 4.2 with VLAN assignment to my Windows XP client. (trying to assign VLAN 100 in my scenario).When user connects to the Router, it passes the authentication process (EAP-MD5). In my debug i see that Router recieves the Radius Attributes BUT does not apply anything!My running config:

Building configuration... 
Current configuration : 1736 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec

[code]......
 
As a result the vlan-switch data based does not change.

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Cisco AAA/Identity/Nac :: Radius Authentication In ACS 5.2 With AD

Mar 10, 2011

I have a questión about radius authenticaction with AD, when I log in into the network with user in AD and I make a mistake in password my radius authenticaction event in ACS 5.2 dont show me this logg. only show the authentication succeeded but dont show me the authentication failed. Maybe i must to enable same service to show the authentiaction failed. The Voice authetication works fine..
 
This is the confg in the port of the switch:
 
interface FastEthernet0/12 switchport mode access switchport access vlan 2 switchport voice vlan 10 authentication port-control auto authentication host-mode multi-domain authentication violation protect authentication event fail action authorize vlan 11 authentication event fail retry 2 action authorize vlan 11 authentication event no-response action authorize vlan 11 authentication periodic authentication timer reauthenticate 60 mab dot1x pae authenticator dot1x timeout tx-period 10 dot1x max-reauth-req 3 spanning-tree portfast end
 
Vlan 2: DATA
Vlan 10: VOICE
Vlan 11: GUEST

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Cisco AAA/Identity/Nac :: RADIUS And VRF In 6500

Apr 10, 2012

I have the next config of radius authentication:

aaa new-model
aaa authentication login default group radius local
aaa authorization exec default group radius local
aaa session-id common
ip radius source-interface Vlan31 vrf LEGACY
[Code] .....

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Cisco AAA/Identity/Nac :: ACS 4.2 - Add RADIUS Attributes

Mar 17, 2012

I want to add Radius attribute to Rad ware devices , so I will have the option to grant "read only" permission to users. as I understand I need to add VSA for the "read only" permission, or configure specific "Service-Type value 255"
   
in the following picture you can see the required information from Rad ware:

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Cisco AAA/Identity/Nac :: ACS SE 4.2 RADIUS Protocol

Mar 28, 2013

I am using the Self RADIUS server in my Cisco ACS SE 4.2 appliance S. I have an AAA client C that interacts with S by means of the RADIUS protocol. This works fine, in that S correctly carries out authentication chores on username/password (PAP and CHAP) pairs received from C, sending back to C the corresponding Access-Accept packet when the authentication succeeds, or Access-Reject when it doesn't.
 
I have been able to import a set of three VSAs into S. Each of those attributes is of string type. I then configured in S a single user U with password P so that, whenever a U/P pair received in S from C is authenticated by S, S should send back to C, in the Access-Accept packet, the three attributes with the following values: [code]

With this setup, when an authentication is successfully completed by S, C receives 53 bytes worth of data from S every time. I am attaching a typical example, already disassembled. I have disguised the actual vendor ID, for legal reasons, but the rest is exactly as it was when received in C.
 
According to the disassembly, what we got is an Access-Accept packet, as expected. Its length is 53 bytes - again as expected, for this is the only packet that C has received from S here. However, the packet is incomplete, for attribute #3 is missing its value field.
 
Looking into the whole packet in more detail, it can be seen that while the wire format for the first attribute, namely, Frame-IP-Address, is correctly constructed, the remaining are not. For example, the sequence of bytes corresponding to the attribute #1 reads 1a 09 00 00 xx xx 2c 61 62 63. I believe that this is incorrect; it should be 1a 0a 00 00 xx xx 2c 61 62 63, for the wire format for this attribute consists of 10, not 9, bytes. I tried a few variations on the values for the attributes, and the results are always substantially the same, in that the wire formats for these attributes are always incorrect.
 
This all probably implies I have done something wrong when importing the VSAs into S, and/or when configuring things on S. I am therefore attaching the csv files I used to import my VSAs into S; as before, names and vendor ID are disguised, but their lengths are exactly the same as in the undisguised file. I used two csv files: One to import the vendor ID, and the other to import the VSAs under that vendor ID. As for user U, in S's administration GUI I clicked on User Setup and selected user U, moved to the bottom of the screen, where the attributes for this particular vendor were present,introduced the values for each attribute mentioned above, and made sure that button in front of each attribute was ticked.

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Cisco AAA/Identity/Nac :: Add OPNET Radius Attributes In ACS 4.2

May 16, 2012

I need to add OPNET Radius attributes in ACS 4.2. How should I add a new VSA in ACS?  The google search is pointing me to CSUtil.exe, and I cannot find this utility in the ACS install files.  These are the values that I need added for OPNET. When configuring the RADIUS server to support the ACE Live Appliance, use the following Vendor Code and Vendor Specific Attribute (VSA): Vendor Code: 7119 VSA: 33.

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Cisco AAA/Identity/Nac :: Missing RADIUS On 3750?

Feb 27, 2012

When I upgraded my cisco 3750 ME from c3750me-i5k91-mz.122-46.SE to c3750me-i5k91-mz.122-58.SE2.bin all commands for radius disappeared? However, there are a lot of commands to ldap which was missing in the previous version. Seems as if the radius has disappeared and been replaced by ldap?

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Cisco AAA/Identity/Nac :: ASA5500 / ACS 5.1 Radius For VPN And Admin?

Feb 27, 2011

I am trying to configure ACS 5.1 to authenticate SSL VPNs on an ASA5500 and aslo to provide admin access to the ASA5500 both via radius.I want to authenticate the VPN against a SeureID appliance and the admin login against a different database (using internal for testing but will use LDAP in the end).I cant seem to get the ACS to distinguish between the two authentication types. If I create a rule that says match protocol radius I can point that at either database but if I try saying match radius and service type 5 it doesnt match the VPN and falls through to the default authentication service. I have also tried matching service type 6 for admin and that doesnt seem to work either.In the end what I want to acheive is to authenticate teh ASA5500 VPN against the SecureID appliance and then admin access to all devices on teh newtork (a mixture of Cisco, F5 and Juniper) to active directory via LDAP where if the user is a member of the "admin" group they get access.I was intending to use specific devices for the ASA5500s (there aretwo) and then creat a device group based on IP address range for everything else.

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Cisco AAA/Identity/Nac :: ACS 5.2 Authentication Radius Juniper NSM?

May 24, 2011

I am trying to authenticate on Juniper NSM express using cisco ACS 5.2.  The request is arriving at the cisco ACS but i am getting the following error.RADIUS requests can only be processed by Access Services that are of type Network Access.

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Cisco AAA/Identity/Nac :: AIRONET 1260 With New Radius ACS 4.x?

Nov 18, 2012

I have CISCO ACS 5.1 radius for VPN on ASA and tried to configure an NDG on it for AIRONET 1260 too and worked fine with IEEE 802.1x CISCO EAP-FAST authentication As I had some trouble to let users to authenticate only on VPN if are VPN users and only on CISCO AIRONET if need only WIFI AIRONET I tried exception policies rules but something not working. VPN was ok but not WIFI access denied for rule policy access I decided to install CISCO ACS 4.x on Windows 2003 that is on ACS 5 DVD I created NDG as done on ACS 5 put a shared secret , put on AIRONET too as done for ACS 5 but I receive an error against ACS 4.x To troubleshout it I tried [URL] but not work ! I think to have done all fine owever on ACS 5 it worked in 5 minutes I searched log inside ACS 4 and found "Invalid message authenticator in EAP request" and I found this: [URL]Changed shared secret more times but ever not workign with ACS 4 I need to have user and password prompt on client trying to authentincate on AIRONET WIFI and I need ACS INTERNAL USER no active directory, no LDAP , no external user database?

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Cisco AAA/Identity/Nac :: ACS 4.0.2 Radius Authentication Setup

Jan 9, 2012

I am having ACS 4.0.2 in my network, which I want to use for 802.1x Radius Authentication for Clients on PEAP-MSCHAPv2 methodology.As per the documentation " EAP Authentication with RADIUS Server",  Doc ID: 44844.I have configured Network Configuration and populated AAA client IP range and Secret Key.
 
Question1: Under Authenticate Using option, there are various RADIUS flavors available for selection. For a Non Cisco AAA client, should I select RADIUS IETF?

Question 2: In the above snap shot, It has an option called Global Authentication Setup, where we can setup EAP configuration. Under PEAP subsection there is an option to "Allow EAP-MSCHAPv2" check box.After checking that, is a restart required to the ACS Server? Would it cause any disruptions to the existing services on the ACS?

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Cisco AAA/Identity/Nac :: Command Accounting For Radius On ACS 5.2?

May 26, 2011

is command accounting for Radius supported on ACS 5.2 ? provided vendor's radius implementation supports this capability.

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Cisco AAA/Identity/Nac :: ISDN Authorization With RADIUS Using ISE 1.1.2?

Nov 19, 2012

I am trying to move my ISDN dialup branches authentication/authorization from old ACS 4.1 to ISE appliance. Before it was through ACS 4.2 with TACACS protocol but now since we are moving to ISE we are moving them to ISE with radius.
 
Problem is that isdn client gets authenticated and authorized but calls get dropped and they dont able to communicate with HO. IP address is assigned by Head End router to all remote isdn dialing branches..
 
I have used default "PermitAccess" in authorization policy and authentication policy is also default. I dont understand where I am going wrong as authentication and authorization is sucessful.
 
aaa authentication ppp default group radius local
aaa authentication network default group radius
aaa accounting network default start-stop group radius
 radius-server host 12.18.22.41
radius-server key *****

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Cisco AAA/Identity/Nac :: How To Configure Radius Failover In ACS 5.1

Aug 21, 2011

I need to configure the ACS 5.1 to meet the following requirement :-
 
1. ACS 5.1 will point to a RSA SecurID as the first authentication mechanism for the validation of user credential

2. In the event that RSA SecurID is not reachable, the ACS 5.1 shall point to its local user database.
 
 I had no problem configuring for Point (1), but I am not able to let it failover to the local user database.

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Cisco AAA/Identity/Nac :: ACS 5.3 For Wireless Authentication Using Radius?

Jul 4, 2012

how to setup ACS 5.3 to authenticate wireless users over radius? I currently have the SSID pointing to a Microsoft IAS server and would like to move the authentication to be done via ACS.

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Cisco AAA/Identity/Nac :: ACS 5.2 ASA 5510 Radius Connection

Jan 17, 2012

currently I'm evaluating an ACS 5.2.I need to authenticate the VPN-Users against LDAP, but have no direct connection from the ASA to the LDAP-Server. So the ASA should connect to the ACS to ask the LDAP-Identity-Store, OK.
 
My first Problem is: the ACS doesn't respond to the RADIUS-Requests of the ASA! ASA use's Port 1812, the Secret is ok, the ASA is as a Network Device in the ACS configured and I've created an internal Test-User on the ACS.the Firewall-Log shows the established connection (so I think, there is a Hand shake!? ), but the ASA says in Radius-Test: "EROR:Authentication-Server not responding".

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Cisco AAA/Identity/Nac :: 5508-WLC Using MS NPS As RADIUS Server For EAP-TLS

May 18, 2011

getting a Cisco WLC to work with MS NPS server? We've done it before albeit with differnt code versions.
 
I have a Cisco 5508 WLC running 7.0.116.0 code hosting a WLAN configured for WPA2 with 802.1x for authentication.  I have two Windows NPS servers configured as the RADIUS servers for EAP-TLS authentication. Via debug info on the WLC I can see the 802.1x handshake take place with the wireless client and the WLC as well as a successful transmission of an Authentication Packet from the WLC to one of the RADIUS servers. However on the WLC I see repeated RADIUS server x.x.x.x:1812 deactivated in global list and on the NPS server I'm seeing event log errors indicating "The Network Policy Server discarded the request for a user"  along with the pertinent auth request info that I would expect the NPS server to receive from the WLC.  Based on the WLC debug info I'm never actually getting to the EAP-TLS certificate authentication part. It seems the NPS servers don't like the format of the initial RADIUS authentication request coming from the WLC and so don't respond whcih in turn casues to WLC to switch to the other NPS server which produces the same issue.

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Cisco AAA/Identity/Nac :: ACS 5.2 Radius Accounting From ASA And Juniper?

Apr 10, 2013

i changed from ACS 4 to ACS 5.2. Everything works fine but i have authentication failed in the Radius accouting reports every time when users connect through ASA or Juniper into our network. Juniper amd ASA only send accounting informations to ACS. The users are not configured on the ACS, authentication is done via external LDAP. So my question is why do o see authentication error on ACS because Juniper and ASA only send accounting packets ?

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Cisco AAA/Identity/Nac :: 877 - Using CHAP With RADIUS Authentication

Jan 19, 2012

I have configured a Cisco 877 router to send RADIUS requests when a user logs in to the console (Line Console or Line VTY) using the following config:
 
aaa new-model
aaa authentication login default group radius
aaa authentication ppp default group radius
 
radius-server host 10.0.0.1 auth-port 1812 acct-port 1812 key mysharedkey
 
When I log the RADIUS packets I see that the Cisco router is sending the initial AccessRequest using PAP.
 
How can I configure the router to send it's inial AccessRequest packet using CHAP?

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