ACS 4.2 and EAP-TLS with AD and prefix problem

Hi there
we have the following situation:
- 2 x ACS (1 x ACS SE 4.2 and 1 x ACS 4.2) for domain A
- 2 x ACS (1 x ACS SE 4.2 and 1 x ACS 4.2) for domain B
First of all, is it a problem to have an ACS SE and an ACS working together for one domain, I don't think so? When we had only one domain and both ACS SE were responsible for domain A, it worked.
Now after the changes, machine authentication with EAP-TLS doesn't work anymore. In the logs it always says that the "External DB user is unknown" for a (machine) username like host/abc.domain.ch
This is the normal output of the Remote Agent, it finds the host but then nothing happens:
CSWinAgent 11/30/2009 16:32:13 A 0140 3672 0x0 Client connecting from x.x.x.x:2443
CSWinAgent 11/30/2009 16:32:14 A 0507 3512 0x0 RPC: NT_DSAuthoriseUser received
CSWinAgent 11/30/2009 16:32:14 A 0474 3512 0x0 NTLIB: Creating Domain cache
CSWinAgent 11/30/2009 16:32:14 A 0549 3512 0x0 NTLIB: Loading Domain Cache
CSWinAgent 11/30/2009 16:32:14 A 0646 3512 0x0 NTLIB: No Trusted Domains Found
CSWinAgent 11/30/2009 16:32:14 A 0735 3512 0x0 NTLIB: Domain cache loaded
CSWinAgent 11/30/2009 16:32:14 A 2355 3512 0x0 NTLIB: User 'host/abc.domain.ch' was found [DOMAIN]
CSWinAgent 11/30/2009 16:32:14 A 0584 3512 0x0 RPC: NT_DSAuthoriseUser reply sent
So I made a test from an ASA to see if the host/ is a problem (before any changes were made it wasn't a problem):
test aaa authentication RADIUS host 10.3.1.9 username host/abc.domain.ch (the ASA transforms the host/ input to the correct Windows schema with the $):
CSWinAgent 11/30/2009 15:39:23 A 0140 3672 0x0 Client connecting from x.x.x.x:1509
CSWinAgent 11/30/2009 15:39:23 A 0390 3728 0x0 RPC: NT_MSCHAPAuthenticateUser received
CSWinAgent 11/30/2009 15:39:23 A 0474 3728 0x0 NTLIB: Creating Domain cache
CSWinAgent 11/30/2009 15:39:23 A 0549 3728 0x0 NTLIB: Loading Domain Cache
CSWinAgent 11/30/2009 15:39:23 A 0646 3728 0x0 NTLIB: No Trusted Domains Found
CSWinAgent 11/30/2009 15:39:23 A 0735 3728 0x0 NTLIB: Domain cache loaded
CSWinAgent 11/30/2009 15:39:23 A 1762 3728 0x0 NTLIB: Got WorkStation CISCO
CSWinAgent 11/30/2009 15:39:23 A 1763 3728 0x0 NTLIB: Attempting Windows authentication for user ABC$
CSWinAgent 11/30/2009 15:39:23 A 1815 3728 0x0 NTLIB: Windows authentication FAILED (error 1326L)
CSWinAgent 11/30/2009 15:39:23 A 0373 3728 0x0 NTLIB: Reattempting authentication at domain DOMAIN
CSWinAgent 11/30/2009 15:39:23 A 0549 3728 0x0 NTLIB: Loading Domain Cache
CSWinAgent 11/30/2009 15:39:23 A 1762 3728 0x0 NTLIB: Got WorkStation CISCO
CSWinAgent 11/30/2009 15:39:23 A 1763 3728 0x0 NTLIB: Attempting Windows authentication for user ABC$
CSWinAgent 11/30/2009 15:39:23 A 1815 3728 0x0 NTLIB: Windows authentication FAILED (error 1326L)
CSWinAgent 11/30/2009 15:39:23 A 0456 3728 0x0 RPC: NT_MSCHAPAuthenticateUser reply sent
It's clear that the test was not successful because of the wrong "machine password" but it's a different output as before. I saw that in ACS 4.1 you could change the prefix of /host to nothing, but in 4.2 this is not possible anymore.
Could this be the problem or does someone see any other problem?
Best Regards
Dominic

Hi Colin
thanks for your answer, we had the this setting correct. I was able to solve the problem yesterday, we had some faults in the AD mapping.
I didn't know that when I select more AD groups for one ACS group in one step, that the user / host has to be in every of these AD groups (AND conjunction).
Now I only added one AD group for my ACS group and it works. The error message "AD user restriction" was not very helpful for finding this fault ;-)
Regards
Dominic

Similar Messages

IPhone and EAP-TLS with ACS & 5508

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-qformat:yes;
mso-style-parent:"";
mso-padding-alt:0in 5.4pt 0in 5.4pt;
mso-para-margin:0in;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-fareast-font-family:"Times New Roman";
mso-fareast-theme-font:minor-fareast;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;}
I have a large customer that is moving into a new building and adding some
new wireless.
They are using a 5508 with 1142's and an ACS server.
They will have the following SSID's
SSID01 -> WPA-EAP-TLS
SSID02 -> WPA2-EAP-TLS (future use)
SSID03 -> Guest Access (internet access only)
They currently use this design across the enterprise which has worked well.
The problem is to get certificates pushed down to the client for the EAP-TLS
they always connect the machine once by wire and log on to the domain so a
GPO pushes the cert to the machine.
This creates a problem that I don't know how to solve as they want to use
iPhones on the new deployment.
Does anyone have any ideas on how to get a cert down to the iPhones for use
with the SSID's?
Thanks in advance for any assistance.

I don't think we can push certs from windows server to iphones . Probably set up a webpage say a accessible from a different ssid from which clients can download and install cert. ?

Access connections 5.50 and EAP TLS with Computer certificate

Hello,
I'm trying to connect to a Wifi using Computer certificate to authenticate and it works perfectly fine with windows Wireless Zero Config however with Thinkvantage Access Connection I always get an authentication error.
I'm using a R61 with a ThinkPad 802.11a/b/g/n, 802.11b/g/n Wireless LAN Mini PCI Express Adapter. It's been updated to the latest driver (v7.6.1.260b)
OS is windows XP with SP3 and all the windows update (as of today).
On my Radius server this is what I get:
If I use WZC I get this in the authentication:
Security ID: DOMAIN\R61WXP$ (this is my computer name)
Account name: host/R61WXP.domain.local
Account Domain: DOMAIN
FQDN: DOMAIN\R61WXP$
When I use Access Connections:
Security ID: DOMAIN\Guest
Account name:
Account Domain: DOMAIN
FQDN: DOMAIN\Guest
My Access connection profile is set this way:
IEEE802.1x => Authenticate as Computer when the information is available.
I hope someone can help !
Thanks!

Hi,
try to dissable the IEEE802.1x => Authenticate as Computer when the information is available.
Make also sure, that the profile connection is correctly configured in the AC profile settings.
This mighe the the root cause.
I can tell you, that there must be something missconfigured, as this configuration will surelly work .
Cheers

EAP-TLS with WLC 5.2.178 Improve Performance and Roams?

Good Morning...
I've been working on moving our clients over to EAP-TLS with Machine Auth for sometime. I had moved the IT Department over a couple of months ago as a test with no issues reported and have tested on a few of our Medical Carts (CoWs) as well with no issues reported. However, upon deploying to a larger population of Carts (Specifically using Atheros 5006x 7.x Driver {No Client}) I've been getting some client drop complaints. If I look at the client history I do see a lot of "Client Associations" or Roams that occure anywhere from ever 2minutes, to every 10minutes to every 5 hours. These carts do move around ALOT as they are pushed from one Patient Room to another so I'm guessing the drops are occuring during a re-authentication phase as the device roams. Looking at the device you might not be able to tell it's dropping but the software we use (Meditech) is very connection sensitive in doing a simple ping you may see a couple of dropped packets until the client is fully connected again. So I'm guessing the roaming is the issue. What can we do to fight this or make it more effecient? It was mentioned to me by a colleague (who doesn't know where he saw it) that he thought it was possible to configure the WLC's to not reauthenticate on the roam? I'm guessing something must be able to be tweaked if the 7921's and 25's support EAP-TLS as this type of latency would never work. By the way I'm using an ACS 4.2 as my authentication platform mapped back to AD.

You will always reauth with a roam. That is part of the 802.11 spec. How you reauth will depend on the type of security you have setup. If you are using WPA2/AES or CCKM the reauths can be done with a PMK instead of needing to go through the entire reauthentication process. Try running "debug client " for a client having the issue and see if it gives you an idea of where the authentication is failing.

EAP-TLS with ISE 1.1.2 and WLC 7.0.228

Hi,
I'm on process of implement Cisco ISE with Wireless LAN Controller. According to my post, I would like to know that if Supplicant Provisioning and EAP-TLS does support on this type of firmware code.
WLC running on 7.0.228 since most of production APs are 1230
ISE running on the latest version.
I have to use EAP-TLS and Supplicant Provisioning on these platforms.
Is this possible to do about this ?
Thanks,
Pongsatorn Maneesud

Please check the below compatibility matrix link for Cisco ISE along with a link for client provisioning which might be helpful:
http://www.cisco.com/en/US/docs/security/ise/1.1.1/compatibility/ise_sdt.html
http://www.cisco.com/en/US/solutions/collateral/ns340/ns414/ns742/ns744/docs/howto_61_byod_provisioning.pdf
http://www.cisco.com/en/US/docs/security/ise/1.0/user_guide/ise10_client_prov.html

EAP-TLS with WLC 5508, Microsoft NPS and custom EKU OID´s

We are trying to implement EAP-TLS with client certificates that have a custom EKU OID to distinguish the WLAN clients. The Microsoft Press Book
Windows Server 2008 PKI and Certificate Security gives an example on how to configure a policy in NPS that matches specific EKU OID´s. At the moment we have two policies that have an allowed-certificate-oid configured that matches the OID´s in our certificates, but our setup is not working as expected. Authentications will only be successful, if the client authenticates with the certificate that is matched by the first policy rule.
For example:
Policy 1: allowed-certificate-OID --> corporate
Policy 2: allowed-certificate-OID --> private
Client authenticates with EKU corporate --> success
Client authenticates with EKU private --> reject
My expectation was, that if Policy 1 will not match the NPS goes over to Policy 2 and tries to authenticate the client.
Has anyone a simmilar setup or can help to figure out what is going wrong?
We have a WLC 5508 with Software Version 7.4.100.0 and a NPS on a Windows Server 2008 R2
regards
Fabian

The policy rejects and the NPS goes to the next policy, only if the user does not belong to the configured group.
This means I need to have one AD group per application policy, but that will not solve my problem. A user could belong to more than one group, depending on how many devices he/she has. It will work with one group only for each user, because the first policy that matches a AD group, the user belongs to, could have a OID that is not in the certificate. This would cause a recejct with reason code 73:
The purposes that are configured in the Application Policies extensions, also called Enhanced Key Usage (EKU) extensions, section of the user or computer certificate are not valid or are missing. The user or computer certificate must be configured with the Client Authentication purpose in Application Policies extensions. The object identifier for Client Authentication is 1.3.6.1.5.5.7.3.2.
The certificate does include this OID but not the custom EKU.

EAP-TLS with windows machine

I had configured everything for certificate authentication EAP-TLS in Windows 2003 AD with enterprise CA. After logging a machine to domain I receive a certificate for computer, then setup XP SP3 to reauthenticate perion 120 sec (by Microsoft KB). I try two different machines with XP to use EAP-TLS authentication, but reason is not toward success.
I use "authentication open" on switch therefore machines could communicate with whole network. Nothing appars in Failed Attempts.csv of Passed Attempts.csv (of couse).
Just list of RDS.log appears some activity ended with
NAS: 172.24.34.62:27910:25 Cleaning lookup entry. AND reapeted
If I change an authentication type to PEAP, and I had not it configured on ACS, than failed attempt log issue is arrised: EAP_PEAP Type not configured.
Is it necessary to use http://support.microsoft.com/kb/957931 on windows XP to success machine authentication?
Please let attentions to Attachments and let me know
what could be a problem of my unsuccessness of use EAP-TLS.
configuration of interface which I use for testing:
interface GigabitEthernet0/42
description Test 802.1X klient - Filip
switchport access vlan 34
switchport mode access
switchport voice vlan 31
authentication host-mode multi-domain
authentication open
authentication port-control auto
authentication periodic
authentication violation protect
dot1x pae authenticator
dot1x timeout tx-period 10
spanning-tree portfast
end

Hi Filip,
Just noticed your post...
In order to use EAP-TLS you should ensure that you have the complete certs chain. I've noticed that EAP-TLS and service pack 3 has some compatibility issue so please try authenticating with a windows XP sp2 machine.
Microsoft has done some changes in SP 3 for wired 802.1x
Changes to the 802.1X-based wired network connection settings in Windows XP
Service Pack 3
http://support.microsoft.com/kb/949984/
In Windows XP Service Pack 2 (SP2), both the wired and wireless connections are handled by the Wireless Zero Config (WZCSVC) service. Additionally, this service is always running. In Windows XP SP3, this WZCSVC functionality is divided into the following separate services as part of Network Access Protection (NAP) integration:
* The WZCSVC service
* The Wired AutoConfig service (DOT3SVC)
As we are using wired authentication, I would suggest you to check whether wired autoconfig service is running or not.You can check by going to Manually start the Wired AutoConfig service
If you are an end-user who has already installed Windows XP SP3, follow
these steps:
1. Click Start, and then click Run.
2. In the Open box, type services.msc, and then press ENTER.
3. Locate the Wired AutoConfig service, right-click it, and then click
Start
Since, we are not getting any hits on the ACS for EAP-TLS, it's clearly indicates that supplicant is not sending access-request...
CERTIFICATE REQUIREMENT IN EAP-TLS:
http://www.cisco.com/en/US/products/sw/secursw/ps2086/products_white_paper09186a008009256b.shtml#wp39121
ACS CONFIGURATION:
http://www.cisco.com/en/US/products/sw/secursw/ps2086/products_white_paper09186a008009256b.shtml#wp39247
MICROSOFT XP CLIENT CONFIGURATION:
http://www.cisco.com/en/US/products/sw/secursw/ps2086/products_white_paper09186a008009256b.shtml#wp39392
As far as peap is concerned where we are getting EAP_TYPE not configured. Here you need to enable peap-mschapv2 under the on the ACS >system configuration > global authentication setup and check the PEAP and EAP-TLS.
Also make sure that your logging is set to full > Go to system configuration > services control > check the radio button for FULL > click on Restart.
Also, let me know the full ACS version and platform.
HTH
JK
Do rate helpful posts-

802.1x EAP-TLS with Cisco IP-Phone on MS NPS

Hi,
does anybody get 802.1x - EAP-TLS with IP-Phones ( e.g. 7962G ) on Microsoft NPS up and running?
With ACS it is not a problem at all.
thx
Sebastian

Hi all !
Have you solved this problem (LSC certificate )? I am facing the same problem and I did not find the solution yet.
This is the last e-mail that Microsoft TAC has sent to the customer:
====================================================================================
As per the discussion, we need to engage Vendor on the case to find out why the CRL Distribution Point (CDP) and AIA paths are missing from the certificate. Ideally CDP contains that Revocation List of the certificates and AIA is used for building the certificate chain.
"Please find below some more information about the same from Microsoft TechNet Article :
CRL Distribution Points : This extension contains one or more URLs where the issuing CA’s base certificate revocation list (CRL) is published. If revocation checking is enabled, an application will use the URL to retrieve an updated version of the CRL. URLs can use HTTP, LDAP or File.
Authority Information Access : This extension contains one or more URLs where the issuing CA’s certificate is published. An application uses the URL when building a certificate chain to retrieve the CA certificate if it does not exist in the application’s certificate cache."
=====================================================================================
Tks for your help !!!!!!!
Luis

EAP-TLS with IAS

Hi, has anyone got some good documentation on setting up EAP-TLS with windows 2003 Active Directory/CA, IAS and Cisco AP1200.
Cisco ACS 3.3 does not support NTLMv2 so I have to use IAS.
Any suggestions?

Hi,
I give you a good documentation explaining how to implement EAP-TLS with IAS (But it is not a AP1200)
Regards,
Davy

EAP-TLS Win2003 CA and IAS...not checking CRL?

Hi
I've got EAP-TLS setup and working using Win2003 CA and IAS as the RADIUS backend. I've issued certs to my wireless users, and now I want to revoke a certificate, so in the CA, I revoke the cert and then under Revoked Certs I click on publish...yet the user can still authenticate and communicate. How can I configure the IAS to check the CRL? Thanks

Hi,
I'm battling to setup EAP-TLS with AP1200,windows AD 2003 and IAS.Are there any funny tricks in setting up
EAP-TLS with IAS.
On the AP1200 I keep getting AAA unsupported.
regds
Johnny

Windows EAP-TLS with machine cert only?

Hey all. Seems like this should be an easy question, but after doing some reading, I'm still a little confused.
Can I authenticate a windows computer against ISE using EAP-TLS with a computer-only certificate and stay authorized when the user logs in? Or will it always try to authorize the user when they log in and break the connection if that fails?
Thanks for any clues.

Hello Leroy-
EAP Chaining (Official name:EAP-TEAP [RFC-7170]) is a method that allows a supplicant to perform both machine and user authentication. In ISE, EAP-Chaining is enabled under the "EAP-FAST" protocol. For more info check out the the following links
Cisco TrustSec Guide:
http://www.cisco.com/c/dam/en/us/solutions/collateral/enterprise/design-zone-security/howto_80_eapchaining_deployment.pdf
RFC:
https://tools.ietf.org/html/draft-ietf-emu-eap-tunnel-method-01
Thank you for rating helpful posts!

EAP-PEAP and EAP-TLS on same switched network

Hello,
I'd like to enable both EAP-PEAP and EAP-TLS on the same network to support 802.1x authentication. The reasons are because of historical things i.e. 'older' devices use PEAP and newer devices use TLS. Over time all will be using TLS, but for now both will the there.
The AAA server is a Cisco ASC (4.2 or 5.1 - don't know yet)
I've not tested this or so, but I don't think this will be an issue....because from a switch point of view, it is just passing EAP traffic to teh Radius and so the required services need to be made available on the Radius server...is that a correct assumption?
Thanks,
Guy

You are right Guy, the switch just as act as an termediary device. It just passes EAPOL packet between the ACS server and client, and waits till the ACS server authenticate the client(internal DB, or external DB= AD, LDAP). You just need to enable EAP/TLS, MS-CHAP and MS-CHAPv2 for PEAP in the ACS server. Last make sure that your certificates at both side are valid and sign by the CA.
Good Luck,
--Jean Paul

How to push EAP-TLS configuration Profile and Certificates to Mac books and Iphones

Hi Team,
We were able to push the EAP-TLS configuration profiles and certificates to windows devices via group policy. However, we're now looking to see how we can accomplish this for Mac book and iphones? Is there an open source application or something we can leverage to do this?
Thanks

I think ammahend was looking for a rough count which is what my question was going to be. The reason I would ask this is that if the device count is low then you could manually provision certs on those devices. Not ideal since you will have to manually generate CSRs, get them signed and then installed on the machines.
Another way to do this is if you have an MDM solution in place. You can have the MDM integrate with your CA via SCEP and then on-board devices that way. You don't have to integrate ISE with MDM (advanced licenses needed) as you can only have ISE check for the cert and only perform EAP-TLS authentications.
Hope this helps!
Thank you for rating helpful posts!

PEAP and EAP-TLS on ACU?

Hi,
Does Cisco have any plan to support PEAP and EAP-TLS in the next release version of ACU?
Thank you.
Regards,
Delon

As far as I know, there is no such plan as of now.

Just bought a dell pc with windows 8. on my old pc (vista) i would right click a movie (in itunes format) and say open with itunes and it would play. Now it won't open in itunes and it just CRASHES. HELP PLEASE. is there a glitch with win 8???

okay not sure how this works so here i go again.
Okay i bought a dell pc with windows 8 (big mistake) i downloaded itunes and from my external hard drive, right clicked a movie file (in ipad format, because this worked in vista on my old laptop) and it will not go into itunes. And itunes keeps crashing. Is there a glitch with win 8 and itunes ? I never had this prob with vista. I would right click a file and say open with itunes and poof it goes in the library. Please help before i throw this thing out the window! OH newest itunes is what i have installed.

Take a look at this MBP, a refurbished unit. Don't let the late 2011 release date put you off. For about $500 less than an equivalent 'new' one with similar specifications you get a quad core CPU and excellent graphics. As Steve359 mentioned, this can be upgraded if the need arises and has the same warranty as a 'new' one
I would not be surprised that these may actually be 'new' MBPs due to the length of time that they have been replaced by the current generation. I purchased a 17" model about 5 weeks ago, and a serial number check suggests that it is 9 weeks old.
http://store.apple.com/us/product/G0NM5LL/A
Ciao.

ACS 4.2 and EAP-TLS with AD and prefix problem

Similar Messages

Maybe you are looking for