AAA/Identity/Nac :: ACS 5.2 Machine Certificate Authentication
May 23, 2011
Is there a way to authenticate a windows computer in ACS 5.2 for 802.1x only with a certificate.The Computer is from a different active directory than the one that is configured in ACS.I tried importing the cert into "external indentity Stores" > "certificate authorities", then setup the computer to use smart card or certificate, then selected the certificate from the other AD.when i look at the ACS log, here is the message i can see: 22044 Identity policy result is configured for certificate based authentication methods but received password based
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Jul 11, 2011
Looking for the steps to configure wired clients using certificate authentication only
- i.e., once a certificate is presented to the ACS that is issued by a trusted CA, the connection is permitted.
No need to tell me about switch configuration.
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Aug 2, 2011
We plan to use machine certificates on our notebooks with Windows Vista. Our authenticating server is Cisco ACS 5.1. To access the wireless network we want to use the machine certificate of the notebook and a verification of the corresponding computer account in the Active Directory. What authentication method is the best to check the machine certificate and if in the Active Directory exist the enabled corresponding computer account ? How to configure the ACS and the notebook to use it like described ?
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Sep 1, 2011
I am trying to setup up a rule to allow wireless access only to users in my AD when they use computers from my AD.I have Machine authentication working on it's own (computer boots up and connects to wireless - confrimed by ACS logs) I have User authentication working But when I try to creat the floowing rule:it does not work.
Access Policy
Access Service:
Default Network Access Identity Store:
AD1
Authorization Profiles:
DenyAccess
Exception Authorization Profiles:
Active Directory Domain:
[code]....
Everything seem to fine until it gets to the last rule.
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Mar 26, 2012
we have a customer with a wifi deployment aruba 3600 controller based. Corporate SSID authentication is EAP-TLS double machine and user authentication through ACS 4.2 against AD and Microsoft AC PKI infraestructure based; it was working ok. After migrating from ACS 4.2 to 5.2, both authentication (machine and user) are reported as succeed by ACS but aruba controller does not recognize machine authentication. It seems that controller sees two authentication users and not an machine followed by and user one. We have revised configuration in detail and it seems correct. We begin thinking it could be a bug .
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Apr 25, 2010
A PC with a machine cert gets connected to a switch running 802.1x. The switch uses EAP with .1x to query PC, handing this off to ACS, that bit I'm ok with. The ACS needs to query the CA server to authenticate the PC, its this process I'm not sure about.
Reading the documentation I think that I need to configure LDAP between the ACS and the CA, which is running on 64-bit 2008 server. But, ACS SE remote agent is 32 bit only.
Is this correct, if so how do I get ACS SE to communicate with a 64-bit 2008 CA server?
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Sep 11, 2011
Any good guide for configuring PEAP with Machine Authentication to allow for domain login?This is a clean install on a new 5.2 install.We are moving from 4.X to 5.2 and i want to make sure i dont miss anything.
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Apr 12, 2013
I am using ISE 1.1.3.124.My first question:I want to know the relation between the attribute "WasMachineAuthenticated" and the MAR (MAchine access restriction in advanced setting for AD).Is-it the same or not ?Once you time out, you need to do machine auth again. What is the timer ?Using the attribute "WasMachineAuthenticated", is-it the same timer that you configure in MAR ? In a distributed environnement, is the information about machine previously authenticated replicated to all policy node ?Because, if a swicth has 2 radius-server, we are not sure that it will point everytime to the same server.
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Aug 5, 2012
I am using ACS 5.3. I have succesfully configured Machine Authentication for a Windows 7 laptop using EAP-TLS. The ACS is configured with an Active Directory external identity store where the Windows 7 laptop is configured as part of the domain. I'm pretty sure that the ACS was using the AD to authenticate the laptop's name because at first the authentications were failing because I had the Certificate Authentication Profile configured to look at an attribute in the client certificate that was empty. When I fixed that, the authentication suceeded.
I started doing some failure testing so I disconnected the Domain Controller from the network. Sure enough, the ACS shows the Active Directory external store is in the Disconnected State.I then went to my Windows 7 laptop and disconnected the wireless connection and connected it again, expecting it to fail because the AD is down. But it succeeded! My Win 7 laptop is accessing the network wirelessly through a Lightweight AP and 5508 WLC. The WLAN Session Timeout was set for 30 minutes. So even with the AD disconnected, every 30 minutes, the ACS log showed a successful EAP-TLS authentication. I then changed the WLAN Session Timeout to 2 hours 10 minutes. Same thing, every 2 hours 10 minutes, a succesfull EAP-TLS authentication. I really don't know how the authentications are succeeding when the AD is not even connected. Is there a cache in the ACS?
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Jul 18, 2011
For our wireless, we enabled the machine authentication, but we want to bind the machine authentication and user authentication together which means they need to meet both requirements to access the wireless, how can we do this? Right now looks like as soon as the machine is authenticated, it can access the network, no user authentication needed.
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Jul 4, 2012
It´s possible to enable unconditional machine authentication in ACS 5.3.
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Aug 19, 2012
Cisco 5508 wireless controllerCisco ACS 5.1LDAP connection I have setup the wireless controller to do RADUIS authentication with the ACS 5.1 using LDAP. The setup is currently working, Brief info below on setup.
I setup the PC client to use WPA2-Enterprise AES and authentication method CISCO PEAP. When I connect to the SSID this will prompt for a username and password. I will enter in my AD details and the ACS with the LDAP connection will authenicate and on the network I go.
Now I want to add machine authentication with CERTIFICATES, each laptop and pc in our network has CA certificates installed.
way that I can add these certificates into the ACS 5.1 so I pretty much want to import them into the ACS. Once they are imported inside I want the ACS to check that the certificates are on the PC and then prompt for the AD username and password, and only once it meets these two conditions it allows the workstation onto the network.So it will be a two form authentication one with certificates and the other ldap.
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Jan 22, 2012
it was possible to install RSA Authentication Manager server into the ACS 5.3 Virtual Machine ?
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Nov 7, 2011
- I have a cisco unified network (ACS 5.1, Cisco controller, LWAP) and have configured ACS to integrate with AD.
- I am using this network for Laptops and wireless IP phones access.
- I have only one Service Selection rule for both Laptops and wireless IP phones. All the conditions attributes are set to ANY except Protocol = Radius
- I select a simple Identity Policy and I use a sequence where IP phones users are authenticated using ACS local user and the Laptops users are authenticated using AD
- Laptop users are authenticated using PEAP and IP phones users using EAP-Fast
Everything is working fine BUT I need to make 2 changes and eventhough I spent many hours hours on forums and reading articles and trying things myself I can't get the changes to work.
The first change is to use 2 Service Selection Rules one for the IP phones and one for the Laptops. After adding another service selection rules that I put at the top, I tried many combinations to try and get the IP phones to use it but whatever I did (used different combinations of conditions), the IP phones always select the 2nd rule, which is the original one. The question is "what conditions to put in a service selection rule to make wireless IP phones use the rule).
The second change is that I want to add machine authentication so only Laptops that are in AD can access the network. AGain I tried various settings but can't get this to work.
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Jan 9, 2012
We use a combination of Cisco ACS and Cisco catalyst 3560 switches for network authentication and authorization. Clients (Windows XP) have a certificate installed which will grand access to the network and put them in the correct VLAN. So far, so good. Some users are testing with Windows 7 in the same set-up as above and run into strange behaviour. The problem is that after a random timer the machine gets de-authenticated and nothing besides a reboot works to get the computer authenticated again (from a Windows point of view). It looks like this only happens to users who are using a certificate to authenticate, Windows 7 MAC bypass users have no such problems. If it occurs, the following logging appears in ACS: [code] We are using ACS 4.2(0) Build 124 and 3560-48PS switches with IOS 12.2(55).
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Apr 10, 2012
Currently the ACS 5 is authenticate the iPhone/iPad by using the MAC address (which is entered manually) and AD user/password, i need to do that with certificate, so it will be scalable.
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Jan 30, 2012
There is ASA with remote access VPN and users are authenticated using third party signed certificates (CA is not local in ASA).When user certificate expires i can see it in syslog messages. For example:
%ASA-3-717009: Certificate validation failed. Certificate date is out-of-range, serial number: (...)
I would like to know if there is an opportunity to view user's certificate expiry date beforehand, say, 3 days before?
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Oct 19, 2012
i am working on ISE 1.1.1, surprisingly i couldn't found certificate authority certifiate at certificate operation anymore.
would it be the change on GUI? So now where i can import the CA certificate to ISE?
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Dec 10, 2010
i have a Setup as Follows
- 5508/1142
- heterogenous Client with WZC, XP, SP3, SSO
- ACS 5.2, MS AD
Target is Songle Sign On wih Machine Cerificates against AD. For testing purpose we tested with EAP-PEAP/MS Chapv2 and Machine Auth, works fine. Now we installed a Machine cert in the Machine cert Store (no User Cert) and reconfigured the WZC for using certs and Machin Auth. What we see is an Error Message in the System Tray that there is no certificate available. We checked it again, the MMC shows us a Machine cert in the Store.
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Feb 21, 2012
I have set up an ACS (5.2) to do EAP-TLS Machine and User Authentication.I am getting intermittent results with the machine authentication using the same laptop as a test client.When the machine authentication succeeds the RADIUS name shows as host/xxx-yyy.When the machine authentication fails the RADIUS name shows as xxx-yyy without the host/.
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Jan 23, 2012
I have 802.1x/peap authentication in my wireless network with ACS 4.2 as the authentication server. I enabled PEAP machine authentication under the Unknown user policy --->database configuration sub-menu. I discovered that I was still able to access the wireless network on my android phone with my domain logon. I later discovered that there is an option in Group policy to force Windows XP clients to perform computer authentication. Now the problem is that windows 7 clients do not have the EAPOL option in the registry, hence the group policy object may not work. How to enforce machine authentication and stop unwanted devices without having to purchase a NAC server.
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Oct 30, 2011
I am currently authenticating wireless clients using PEAP User Authentication through a Cisco Wireless LAN Controller and Cisco ACS 4.2, which points to a Microsoft Active Directory external database. This does not keep users from configuring thier personal devices with thier Active Directory login information and connecting to the corporate wireless network. I can setup a client to use a certificate, machine authentication and user authentication, but I havent been able to REQUIRE the certificate and or machine authentication to authenticate to my wireless network.
>I now have the Windows External Database Configuration, ACS External Database setup with Enable PEAP Machine Authentication and Enable machine access restrictions. With the client configuration set to use Computer Authentication, it passes the authentication through ACS (and AD), but the client can also be configured for User Authentication and also pass authenticaiton. Is there a way to only require Computer Authentication through a Cisco WLCCisco ACS?
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Jun 29, 2011
ACS 5.1 EAP-PEAP Machine Authentication,
I have configured ACS 5.1 to check AD domain computer accounts then permit access, the next rule authenticates AD domain users and checks machine accounts with WAS MACHINE AUTHENTICATED "TRUE" permit.
My dilemma - Windows XP supplicant work fine and I can see the host/machine (Wireless device) authenticating followed by user credentials, but when I use the Intel Pro/set supplicant version 12.1 the same device fails authentication due to ACS not being able to verify a good previous machine authentication?
Is this problem ACS related or down to the Intel supplicant.
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Jan 9, 2012
Running ACS5.2, Windows XP Pro, Window Server 2003 and Cisco Anyconnect Client. When the machine name password changes between the PC and the AD server the ACS will error out with "24485 Machine authentication against Active Directory has failed because of wrong password".TAC has been working with us on this and sees the error in the logs but does not have an answer on with to do to solve this. It has the same problem with Wireless Zero. Once the PC is rebooted the error goes away for 30 days. We are in a hospital setting so this is a not just a minor problem
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Apr 21, 2010
I met a problem with machine authentication. Following is the conditions:
1. WLC5508, version 6.0.196
2. ACS 5.1.0.44
3. WIN AD
4. PEAP-MSCHAPv2+machine authentication
the machine auth failed, I checked the log, it says Machine not found in AD:11001 Received RADIUS Access-Request
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Aug 1, 2012
I'm changing SSL VPN from aaa authentication to both aaa and certs, Server 08 CA, 8.2 ASA 5510, ssl client 2.5.1025 and Windows 7 users. My question is what should be the template of the id cert that I receive from CA. ,
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Jan 18, 2012
we are using Cisco Aironet 1130 AG and a Cisco 4402 WLC in our network. The certificate service is installed on a Windows 2008 R2 server. We use a standalone Root CA with a Enterprise Sub CA hierarchy. Issueing certificates to clients works fine. The vendor and ca certificates are installed on the WLC and the user have his user certificate. During implementation we used following document: url... Instead of Anonymous Bind, we use a service user to read in AD (works fine, too).
We use the Intel/PRO wireless utility on our Testclient and configured it for EAP-FAST and TLS. We can select the installed certificate in the utility, but when we try to connect, the utility throw the message: "Authentication failed due to an invalid certificate".We´ve logged the WLC and thats a part of the logfile (i´ve greyed out all enterprise data): [code]
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Dec 20, 2012
I am doing a proof of concept with anyconnect and certificate authentication. with 3.0 i was able to do this with a certificate from my CA and a client cert in a smartcard. I have upgraded to 3.1 and now it doesnt work anymore ( i need 3.1 and Asa 9.0 because of IPv6 Split-tunneling).Reading the forum i got some info that the ASA cert must have a EKU value of 'Server Authentication' and the client cert must have a similar EKU (client Auth)
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Jun 2, 2013
I have the problem with machine authentication, our customer using Wireless Controller 2500 Series and need implement machine authentication on IAS server. So, as my understand is our controller may not change anything with configuration but we may configure IAS for support machine authentication, correct? but my question is how to? and is it work ?
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Sep 26, 2012
we have acs 4.2 as our radius server, and 2 wlc 4404 with a wism2 for our wireless network. we have 2 SSID network, lets call them SSID A and B. A have a more restricted access to server than B.PEAP machine authentification is authorize on both network, to let our users laptop connect before the user login, this enable us to have our computer gpo deploy before the user logon, or have network access to authenticate a user to our directory if he had not logon previously on the laptop.
Users from group A can't logon to SSID B, they can only logon to SSID A, but we have some clever users from group A who have change they wireless setting to only send machine authentification (this can be done in the advance setting of a wireless network in windows 7) to connect to SSID B
We can't force the wireless config by GPO because we don't have an ad 2008 domain, we are still in 2003 soo we can't change the gpo for windows 7 wireless setting . I can't force user to require machine authentification and user authentification because we have a lot of ipad and iphone, and other mobile device that connect using only their user credentials.Is there a way I could configure this without having to disable machine authentification for SSID B?
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Jul 8, 2010
The IPAD VPN works great over token, radius and local authentication. But now we need to authenticate vpn client via digital certificate (only vpn authentication between client and gateway)? I'm not sure which certificate we should buy to authenticate vpn client.The plan is to install digital certifiacte on VPN Gateway (CISCO ASA 8.0.4) and IPAD Cisco IPSec client to eliminate user/pass authentication.
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Sep 25, 2012
I have configured SSLVPN on a asa5520 with aaa and certificate authentication.Both authentication works fine,but I find the client users can use any others' certificate to authentication,I want to binding the aaa account to user's certificate.everyone must use their own certificate.
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Oct 24, 2011
I am using a cisco asa5520 and i have set up remote access vpn with an AnyConnect connection profile.In the connection profile i have set up that users should authenticate using both certificate and AAA.Due to a high security requirement, the user certificate is issued from a 3rd party. This is working fine and the user now need a valid certificate and a username/password to authenticate successfully.I added the CA certificate as a associated trustpoint on the ASA box to get the certificate verification working.Problem:If Jane and Joe both have a valid certificate AND a valid username/password, Jane could authenticate using a combo of Joes certificate, and Janes username/password. Both are valid (isolated), but i only want jane to be able to authenticate with her username/password and her personal certificate.
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