EAP - TLS in ACS 5.2 error

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• Authentication EAP - TLS with ACS 5.2

  Hi all

  I have question on EAP - TLS with ACS 5.2.

  If I want to implement the EAP - TLS with Microsoft CA, how authentication computer and user will be held?

  Understand that the cert is required on the client and the server end, but is this certificate to the computer links or links to individual users?

  If the links to the user, and I have a shared PC connection by few users, is that each user account will have their own certificates?

  And each individual user will have to manually get the CA cert? is there another method that my environment has more than 3000 PCs.

  And also if it binds to the user, any user can get their CA cert with their AD username and password, if they bring in their own device and try to get the CA certificate, they will be able to properly install the cert in their device on the right?

  I hope you guys can help with that. Thank you.

  Hope this will answer most of your questions:

  Client certificate or user

  http://www.Cisco.com/en/us/Partner/Tech/tk59/technologies_tech_note09186a00804b976b.shtml#T10

  Computer certificate

  http://www.Cisco.com/en/us/Partner/Tech/tk59/technologies_tech_note09186a00804b976b.shtml#T15

  In the case of EAP - TLS we have the certificate of computer and user installed on the machines.

  Kind regards

  Jousset

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• Install certificates for EAP - TLS does ACS does not work

  Hi all

  I have two problems.

  I produced a CSR ACS and sent my people to windows this and they published my ACS with a certificate. Cool.

  I'm going to download the GBA and I put a 'private key file?

  What is this file? and where can I get a? What is this long string of characters that generate the CSR, I sent the boys of windows?

  Also, I managed to just put any old rubbish in there? and I was surprised he accepted.

  Restarted the service IS and I tried to turn it on eap - tls on the "Overall Authentication Configuration" page to get only the message

  Could not initialize authentication PEAP or EAP - TLS because that Protocol

  certificate is not installed. Install CA using "ACS."

  «Configuration of CA page»»

  Now, I'm a little confused, because if have the installer GBA incorrectly, because of my lack of understanding of what this private key file and how it relates to all which?

  Thx a lot indeed.

  Ken

  I'm having the same problem. It seems the guys from windows to generate a cert that it must be exportable, which offers also private key file. I tried the following without success document. It can work for you, however, http://www.cisco.com/en/US/products/sw/secursw/ps5338/products_configuration_example09186a008020a45c.shtml

  I also tried to have the ACS to generate a certificate self-signed, that works. But on the client, you must uncheck the box validate the server certificate because GBA is not a trusted certificate servers. Right now I'm trying to understand how ad to publish the ACS as a trusted cert server so windows knows to do trust the cert of the ACS. Through all this, I found that you can configure in several ways, the most difficult part is to find a way that works for you.

• Configuration of LEAP and EAP - TLS on ACS 4.2

  Hi all

  I am starter to wirless lan, I'm 3.3 ACS ACS 4.2 migration, I must define LEAP & EAP - TLS for authentication of the end-user wireless, how to set up LEAP and EAP - TLS on Version 4.2 ACS.

  Similalry for EAP - TLS its requires a certificate to be migrated from old ACS 3.3 to 4.2 ACS, kindly tell me here.

  Hi Santosh,

  I am attaching a copy of the link because you could not access the link.

  I hope this helps.

  Kind regards

  Anisha

  P.S.: Please mark this thread as answered if you feel that your query is resolved. Note the useful messages.

• ACS 4.0 EAP - TLS Cert does not

  Hey,.

  so, I have generated my certificate signature request, took it to my CA, a cert. "ACS Certification Authority Setup" I have installed on my device ACS, then 'Install ACS certificate' installed (he parked in the privkey and password so I guess he got that comes from the cert file). I then add the CA to "change CTL. All of this goes off without a hitch.

  However when I try to add the "certificate revocation list" I am unable to add the two LDAP:------and http://. I confirmed that the http:// is working on the certification authority, and all the possible indications are that the ldap protocol works too but I can't test with tools.

  When I go to "System Configuration"-> "Global Authentication Setup"-> "allow EAP - TLS' I get the following error.

  Could not initialize the PEAP or EAP - TLS authentication protocol because the certificate authority is not installed. Install the certification authority by using the "ACS Certification Authority Setup" page.

  Exactly, which is not installed on the certificate? It is on the ACS server, it is configured and the date range is correct.

  I've been banging my head against this all day and could use some suggestions. :)

  Hello

  For EAP - TLS to work you must use external CA installation such as Microsoft or Rapid SSL etc and auto generated in ACS certificates supports PEAP support but not EAP - TLS.

  HTH

  Ahmed

• 802. 1 x EAP - TLS for wired users with ACS 5.5

  Hi all

  We are setting up a new configuration for wired users authentication with 802.1 x (EAP - TLS). ACS 5.5 we use as an authentication server.

  We have added the certificate (internal) CA root and certifcate for ACS signed by CA. Now, we want to check that authentication works or not. I hope that the CA root and identity certifcate also we need to install in laptop computers. But I don't know how to download the certifcates for client machine manually to CA.

  Please suggest on how to get certificates for clients both manually and automatically?

  Thank you

  Vijay

  Hi Vijay,

  for Wired 802.1 x (EAP - TLS) you must have the following certificates:

  Intermediate server on ACS - Root CA, CA certificate,

  The customer - Root CA, intermediate CA, user certificate (in the case of user authentication) or Machine certificae (in the case of authentication of the computer)

  I do not know what third-party certificate you use, if its Microsoft in the House or any other certificate server, you need to download the client certificate to the server itself.

  In the case of Microsoft, there will be a user certificate template. You can select and create user certificate

  This is an old document, but a computer certificate for the user configuration steps, you can see the steps to download the certificate user if his server from Microsoft:

  http://www.Cisco.com/c/en/us/support/docs/security/secure-access-control...

  In case you use the third serevr certificate, then you must check with them on how to download the certificate of the user

  See you soon

  Mohammed (rate useful message)

• LEAP EAP - TLS on WLC

  Hello

  I need to deploy authentication of certificate based for some devices of client for Intermec for a customer. I intend to use a separate SSID for this. There are other existing SSID who based radius authentication.

  question: if I don't select any server radius for this eap tls ssid and select only "BOND", going to work? Or will the WLC always find already defined radius servers and authentication failure?

  Question2: If above is not possible, I have to go for eap tls with ACS. someone had some easy steps to get eap tls operational? (1252, wlc 4400, acs 4.1 windows CA LAP)

  concerning

  Joe

  You will be able to use local for jump car as long as you do not specify a server radius on this ssid. Then you can have a different ssid to break the eap - tls pointing to a RADIUS.

  Sent by Cisco Support technique iPhone App

• 4.2 of the ACS and EAP - TLS with AD and prefix problem

  Hello

  We have the following situation:

  -2 X ACS (ACS SE 4.2 1 x and 1 x 4.2 ACS) for domain

  -2 x ACS (ACS SE 4.2 1 x and 1 x 4.2 ACS) for domain b.

  First of all, there is a problem to have an ACS SE and a CBS work together for an area, I do not? When we haven't had that one area and the two SE ACS were responsible for domain A, it worked.

  Now after the changes, authentication of machine with EAP - TLS is no longer in effect. In the newspapers, it always says that "external user DB is unknown" for a username (machine) as host/abc.domain.ch

  This is the normal output of the Remote Agent, he finds the host but then nothing happens:

  CSWinAgent 2009-11-30 16:32:13 0140 3672 0x0 customer who connects from x.x.x.x:2443
  CSWinAgent 2009-11-30 16:32:14 0507 3512 0x0 CPP: NT_DSAuthoriseUser received
  CSWinAgent 2009-11-30 16:32:14 0474 3512 0x0 NTLIB: Creating Domain cache
  CSWinAgent 2009-11-30 16:32:14 0549 3512 0x0 NTLIB: domain Cache loading
  CSWinAgent 2009-11-30 16:32:14 0646 NTLIB 3512 0x0: none of the trusted domains found
  CSWinAgent 2009-11-30 16:32:14 0735 3512 0x0 NTLIB: cache loaded field
  CSWinAgent 2009-11-30 16:32:14 2355 3512 0x0 NTLIB: user "host/abc.domain.ch" found [FIELD]
  CSWinAgent 2009-11-30 16:32:14 0584 0 x 3512 0 RPC: NT_DSAuthoriseUser response sent

  So I did a test of the ASA to see if the host is a problem (until changes have been made it was not a problem):

  AAA authentication RADIUS host 10.3.1.9 username host/abc.domain.ch to test (the ASA becomes the host / entry for the correct Windows scheme with the $):

  CSWinAgent 2009-11-30 15:39:23 0140 3672 0x0 customer who connects from x.x.x.x:1509
  CSWinAgent 2009-11-30 15:39:23 0390 0 x 3728 0 RPC: NT_MSCHAPAuthenticateUser received
  CSWinAgent 2009-11-30 15:39:23 0474 3728 0x0 NTLIB: Creating Domain cache
  CSWinAgent 2009-11-30 15:39:23 0549 3728 0x0 NTLIB: domain Cache loading
  CSWinAgent 2009-11-30 15:39:23 0646 NTLIB 3728 0x0: none of the trusted domains found
  CSWinAgent 2009-11-30 15:39:23 0735 3728 0x0 NTLIB: cache loaded field
  CSWinAgent 2009-11-30 15:39:23 1762 3728 0x0 NTLIB: had WorkStation CISCO
  CSWinAgent 2009-11-30 15:39:23 1763 3728 0x0 NTLIB: Windows authentication attempts for user ABC$
  CSWinAgent 2009-11-30 15:39:23 1815 3728 0x0 NTLIB: Windows authentication FAILED (Error 1326 L)
  CSWinAgent 2009-11-30 15:39:23 0373 3728 0x0 NTLIB: retry authentication to the domain
  CSWinAgent 2009-11-30 15:39:23 0549 3728 0x0 NTLIB: domain Cache loading
  CSWinAgent 2009-11-30 15:39:23 1762 3728 0x0 NTLIB: had WorkStation CISCO
  CSWinAgent 2009-11-30 15:39:23 1763 3728 0x0 NTLIB: Windows authentication attempts for user ABC$
  CSWinAgent 2009-11-30 15:39:23 1815 3728 0x0 NTLIB: Windows authentication FAILED (Error 1326 L)
  CSWinAgent 2009-11-30 15:39:23 0456 0 x 3728 0 RPC: NT_MSCHAPAuthenticateUser response sent

  It is clear that the test failed because of the bad 'past to a computer' but it's a different output as before. I saw that in ACS 4.1, you can change the prefix of send_break_action for nothing, but in 4.2 it is no longer possible.

  This could be the problem, or if someone sees no other problem?

  Best regards

  Dominic

  Hello

  I encounter the same problem with my acs. I have all of the attempts failed for the default group. For the default group made configuration is not available. Is - this thereason behind all this?

• Cisco ACS with external DB - EAP - TLS

  Hi guys,.

  I understand how the EAP - TLS exchange works (I think), but if I have a client (with or without wire) that uses EAP - TLS with a CBS, I confirm the following.

  Let both users and computer certificates are used:

  1. customer and ACS are with each of the other automatic certificates to ensure they are known to each other. The eap - tls Exchange.

  2A. At any given time and I'm assuming until the successful eap - tls message is sent to the client, the ACS to check if the user name or computer name is in the AD database?

  2B. Wot is the parameter that is checked on the AD database?

  I read here that it can be: http://www.cisco.com/en/US/docs/net_mgmt/cisco_secure_access_control_server_for_windows/4.1/configuration/guide/peap_tls.html#wp999517

  Client certificates

  The client certificates are used to identify with certainty the user in EAP - TLS. They have no role in the construction of the TLS tunnel and are not used for encryption. A positive identification is made by one of three ways:

  CN (or name) comparison-compare CN in the certificate with the user name in the database. More information on this type of comparison is included in the description of the subject field of the certificate.

  Comparison of SAN-compare the San in the certificate with the user name in the database. It is only supported from the ACS 3.2. More information on this type of comparison is included in the description of the field another name of the subject of the certificate.

  Binary comparison - compare the certificate with a binary copy of the certificate stored in the database (only AD and LDAP for that). If you use the binary comparison of certificate, you must store the user certificate in a binary format. Also, for the generic LDAP and Active Directory, the attribute that stores the certificate must be the standard LDAP attribute named "usercertificate".

  3. with the foregoing, if options 1 or 2 are used (CN or SAN comparison), I guess it's just a check between a value out the CERT of the ACS and checked with AD, is that correct? With option 3, GBA exercise a complete comparison of the certificate between what the client and a "cert stored client" on the AD DB?

  Please can someone help me with these points.

  I'm so lost in this kind of things :)) I think.

  Thx a lot and best regards,

  Ken

  TLS only * handle * is complete/successful, but because the user authentication fails.

  CryptoLib.SSLConnection.pvServerInfoCB - process of TLS data: State = SSLv3 client SSL read Exchange of keys A

  CryptoLib.SSLConnection.pvServerInfoCB - process of TLS data: State = SSLv3 read Certificate SSL check

  CryptoLib.SSLConnection.pvServerInfoCB - process of TLS data: SSL = SSLv3 read state completed A

  CryptoLib.SSLConnection.pvServerInfoCB - process of TLS data: State = SSLv3 write change cipher spec A SSL

  CryptoLib.SSLConnection.pvServerInfoCB - process of TLS data: SSL = SSLv3 write finished State has

  CryptoLib.SSLConnection.pvServerInfoCB - process of TLS data: State = SSLv3 data embedded SSL

  CryptoLib.SSLConnection.pvServerInfoCB - process of TLS data: State SSL = SSL handshake completed successfully

  EAP: EAP - TLS: handshake succeeded

  EAP: EAP - TLS: authenticated handshake

  EAP: EAP - TLS: CN using the certificate as an authentication identity

  EAP: State EAP: action = authenticate, username = 'Jousset', the user identity is "jousset.

  pvAuthenticateUser: authenticate "jousset" against CSDB

  pvCopySession: assignment session group ID 0.

  pvCheckUnknownUserPolicy: Group of session ID is 0, the call pvAuthenticateUser.

  pvAuthenticateUser: authenticate "jousset' against the Windows database

  External DB [NTAuthenDLL.dll]: Cache of Creating Domain

  External DB [NTAuthenDLL.dll]: Domain for loading Cache

  External DB [NTAuthenDLL.dll]: no UPN Suffixes found

  External DB [NTAuthenDLL.dll]: could not get the domain controller for dwacs.com trust, [error = 1355]

  External DB [NTAuthenDLL.dll]: could not get the domain controller for enigma.com trust, [error = 1355]

  External DB [NTAuthenDLL.dll]: could not get the domain controller for acsteam.com trust, [error = 1355]

  External DB [NTAuthenDLL.dll]: could not get the domain controller for vikram.com trust, [error = 1355]

  External DB [NTAuthenDLL.dll]: domain loaded cache

  External DB [NTAuthenDLL.dll]: could not find the user jousset [0 x 00005012]

  External DB [NTAuthenDLL.dll]: user Jousset is not found

  pvCheckUnknownUserPolicy: assignment session group ID 0.

  Unknown user "jousset" was not authenticated

  If EAP-failure (RADIUS Access-Reject (is sent, no EAP-Success(Radius Access-Accept).))

  And no matter how port will not be allowed to pass traffic unless the NAS device gets an EAP-Success(Radius Accept) for the user.

  HTH

  Kind regards

  Prem

• [Cisco ACS 5.2] EAP - TLS authentication failure

  What we are e

  Hello

  I set up a WiFi connection on Windows XP and Windows 7 with EAP - TLS (using Cisco WLC 7.0.235.3 and Cisco ACS 5.2.0.26.10). It is configured with the authentication of the computer and computer certificates are automatically registered for Microsoft PKI.

  It works well!

  Now, I configured Windows 8 with the same configuration.

  First authentication works, but if I manually disconnect and reconnect, I got this error on ACS: 22047 username main attribute is missing from the client certificate

  In the EAP packets, we could see that Windows 8 sent a TLS session but ticket session has not properly taken over by ACS...

  Configuration of the ACS, we checked the option "enable EAP - TLS Session resume' with the session timeout"7200 ".

  I found this bug

  http://Tools.Cisco.com/support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId= CSCtn26538& from = summary

  It seems to be my problem but the reboot does not work in my case...

  It is set at 5.3 (0.40.2).

  I plan to install version 5.4.

  Do you know if this fix is supported by 5.4?

  Thanks for your help,

  Patrick

  Hi Patrick,

  What is set in point 5.3 must be set in point 5.4.

  Even if the same issue appeared with 5.4 there an ID different bug and identified as an independent issue (with different causes, usually)

  HTH

  Amjad

  Rating of useful answers is more useful to say "thank you".

• ACS 5.4 EAP - TLS: the system of null or invalid message met CSCOacs_Internal_Operations_Diagnostics 31201

  Hi all

  I am trying to configure wireless with 802.1 x, authetication in the EAP - TLS computer with digital certificates, but it does not work.

  It runs on ACS 4.2.

  The message is ACS CA is not known, but it is configured correctlry.

  I have a "Wireless" accesses with identity store AD1 policy. I also tried to set up CN, SAN and a lot of identity store sequences, same results.

  At the time of authentication, I also see this log message:

  System encountered null or invalid message

  CSCOacs_Internal_Operations_Diagnostics

  31201

  I could be associated to?

  Can someone help me?

  THX,

  Andrea

  I see the certificates installed have been already expired.

  Regarding your second question, where do you see a mistake. I suspect a defect.

  CSCtw48906    Error due to an empty message (vector buffer), sent to the enforcement process

  Symptom: An Error Message is seen inlogs: message of the ERROR encountered CSCOacs_Internal_Operations_Diagnostics 31201 null or invalid system

  Conditions: ACS 5.2

  Solution: The issue is cosmetic. This message can be ignored.

  Under the guidance of the Director, this occors error when a message empty (vector buffer) that was sent to the runtime on the message Bus and it seems to be "cosmetic" question

  In default, debugging is attached. If you wish, you can activate the debbuging level performance logs and match symptoms.

  Here are the steps to generate support bundle.

  ACS / admin # acs - config

  Escape character is CNTL/D.

  Username: acsadmin

  Password:

  ACS/admin(config-ACS) #.

  Set logging for debug mode.

  ACS/admin(config-ACS) # debug level to debug-log duration

  ACS/admin(config-acs) #exit

  Collect the beam of support after reproducing the problem.

  Jatin kone

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• Error Windows 7 IPsec IKEv2 VPN EAP - TLS

  I Strongswan Server Setup Ubuntu 14.04 since the official package with IKEv2 and eap - tls = rightauth repo using our public KEY infrastructure. I can connect correctly to Android and Linux but not Windows. I have installed my personal certificate in the certificate store, but when trying to connect it throws this error in the image. I have also attached my certificate (without the private key of course) personal - certificate rsa public only

  

  Hello Vyronas,

  The question you posted would be better suited in the TechNet Forums. I would recommend posting your query in the TechNet Forums.
  TechNet Forum
  http://social.technet.Microsoft.com/forums/Windows/en-us/home?category=w7itpro

  Hope this information helps.

• Authorization of EAP - TLS machine uses ACS 5.2

  Hi all

  I've been struggling with this during a few days now and I think there must be something I'm not quite understand.

  We strive to deploy new wireless infrastructure using windows, APs from Motorola (with switches RFS) wireless clients and using a Cisco ACS as Radius Server 5.2.

  Trying to get EAP - TLS to work, I can get customers to connect if no actual authorization is used, but when I try to validate if the name of the computer in the client certificate belongs to a particular group, the authorization fails.  I don't see how to get the ACS to use the RADIUS "Username" it receives via the certificate allowing the machine.  The value of the Radius user name attribute is the name of the machine.  I would like the ACS to check to determine if this computer name belongs to a group, especially in the Windows AD.

  We started with PEAP-MSCHAPv2, but security wanted machine authorization so we thought that EAP - TLS was the only way to get it.  Now I'm not sure.

  I would like if someone can guide me in obtaining the ACS to validate if the computer belongs to a group in Active Directory using

  (1) EAP - TLS

  (2) PEAP-MSCHAPv2

  Thank you!

  Hello.

  Just check something here:

  You have in your policy, in terms of identity, AD1 (or certain Sequences of identity store with inside AD1) listed as Source of identity?

• [ISE or ACS] EAP - TLS or profiling as the same SSID

  Hello

  I can only configure one SSID to connect 2 types of devices:

  • Devices with certificates connect on this SSID using EAP - TLS
  • Devices without the ISE profiles certificates (or ACS verifies their MAC addresses)

  Could this work?

  How can I configure this type of SSID on WLC?

  • 802. 1 X works
  • 802.1 X + MacFiltering works.
  • I failed to configure 802.1 X or MAC filtering...

  Thanks for your help,

  Patrick

  Hello Patrick.

  Unfortunately, I don't think that's currently possible in the world of wireless Cisco with a unique SSID. For your example, you will need two separate SSID. Something similar has been asked before:

  https://supportforums.Cisco.com/discussion/11941331/isewireless-nacone-SSID-MAB-and-dot1x

  I hope this helps!

  Thank you for evaluating useful messages!

• ACS 5.5 with EAP - TLS SHA 256 certificates

  Hi all

  Well, I just want to confirm that ACS 5.5 supports EAP - TLS with certificates SHA2.

  Thank you

  Manel

  Manel salvation,

  There was a time long deposited back enhancement to support EAP - TLS SHA 256 and obtained certificates fixed ACS 5.2 leave.

  CSCtd34175    Support for SHA2 certificates

  To answer your question, ACS 5.5 does support SHA2 certificates with eap - tls.

  ~ BR

  Jatin kone

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