Installing wildcard cert on ISE for HTTP/EAP

I need to install a wildcard cert on ISE, but have no experience with wildcards. I have the *.domain certificate, but i am not sure of the process, and the Cisco docs add to the confusion. Am i supposed to generate a new CSR to give to the CA, do i simply install the *.domain cert? I have read the install guide and it of course makes the assumption that you know what you're talking about, and when it comes to installing wildcards, i don't know...
Any assistance would be greatly appreciated

If you are already in the possession of the wildcard cert and the private key, then you don't need CSR. You can simply import the certificate in ISE:
1. Go to Administration > Certificates > Local Certificates > Add > Import Server Certificate
2. Use the "browse" buttons to point to the certificate file and private key
3. Check "Allow Wildcard Certificates"
4. Select the protocol that you want to use it for (EAP or HTTPS or both)
5. Hit submit
6. Go to Certificates Store
7. Import the root CA certificate and Intermediate CA certificate(s) (If any)
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Similar Messages

ISE 1.2 and WildCard Cert

hello,
i"ve found a great post from Aaron Woland about how to make/install/use Wildcard certificate.
http://www.networkworld.com/community/blog/what-are-wildcard-certificates-and-how-do-i-use-them-ciscos-ise
but there is something that was not answered by his post.
Can i use WildCard cert to register node to an ISE deployement? Aka adding a Monitor only node to a admin only node
create CSR, receiving Cert from CA, adding CA root, binding cert to CA root then exporting key, then importin on Mon node then try to register mon node? my first test didnt go well.
Any input would be appreciated

Basant,
I agree with what you are saying but it seems that your statement contradicts the write up on the Cisco user guide for 1.2, there are no limitations and one of the benefits stated by the doc is that you can use wildcard certs as a cost saving measure which will allow you to install the cert on all ISE nodes.
I do have a corporate wildcard certificate and I will attempt to register two nodes together and see what the result is.
Also the true benefit of a wildcard cert is where the CN is *.domain.com, you should not have to generate a CSR where the CN=iseblah.domain.com with a SAN of *.domain.com, I do not think that is a cost effective wildcard cert since the CN has the fqdn of the ISE node.
http://www.cisco.com/en/US/docs/security/ise/1.2/user_guide/ise_man_cert.html
Tarik Admani
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7925g plus EAP-TLS plus wildcard cert

Hi folks,
Has anyone managed to put a wildcard cert on a 7925G (or 9971) to use for client authentication with EAP-TLS? It seems like one is forced to use the MIC or a cert from a csr generated by the phone... but I'd really rather not keep track of a zillion certs.
Thanks for any help.

Hi,
have you read the infos from the deployment guide (page 72 - install certificates) already
http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7925g/7_0/english/deployment/guide/7925dply.pdf

ISE 1.3 public wildcard cert

Is it a good idea and common practice to just use public CA for wildcard certificate on each ISE node to avoid any certificate warnings on non-corporate devices?
is it ok then to use it also for EAP-TLS authentication? Clients will still have internal CA certs.
Or should we have a separate internal wildcard cert just for EAP-TLS. In this case, will ISE 1.3 allow me to have to wildcard certs with the same SAN (*.domain.com), one is public, the other is internal. The public one would apply to Web portals, and internal one would apply to EAP-TLS/

Hi Trevor-
The use of Wildcard cert is perfectly acceptable for the guest portals. As you said, this will ensure that guest users don't get the certificate trust error.
However, for the EAP side of the house, you will need to get a non-wildcard certificate. Many supplicants (including Windows) will NOT accept a wildcard certificate when building an EAP tunnel.
I hope this helps!
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Installing certificate on WLS 2106 for EAP-PEAP

HI,
I'm trying to install a certificate on a 2106 to use EAP-PEAP. I don't want to use the built in cert as I suspect the 2048 key size is causing iPhone/iPad devices to fail to authenticate.
I've tried to install a seld signed cert as the vendor CA cert under security/advanced, however the cert installs but I get no prompt for the cert on clients, and also EAP-PEAP no longer works.
What are the basic steps/type of cert(s) I need to install?
Thanks,
SImon

Simon,
You need to create a certificate package in order to install a certificate in a WLC,
Try following this link for the basic steps and adapt them as necessary for your certificate and see if that helps
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00806e367a.shtml
Also I believe the key size needs to be 2048 but I could be wrong.
HTH

Need suggestion for ISE distributed deployment model in two different data centers along with public certificate for HTTPS

Hi Experts,
I am bit confused about ISE distributed deployment model .
I have two data centers one is DC & other one is as a DR I have requirement of guest access service implementation using CWA and get public certificate for HTTPS to avoid certificate error on client devices :
how do i deploy ISE persona for HA in this two data centers
After reading cisco doc , understood that we can have two PAN ( Primary in DC & Secondary in DR ) like wise for MnT (Monitoring will be as same as PAN ) however I can have 5 PSN running in secondary i.e. in DR ISE however I have confusion about HA for PSN .. since we have all PSN in secondary , it would not work for HA if it fails
Can anybody suggest me the best deployment solution for this scenario ?
Another doubt about public certificate :
Public Certificate: The ISE domain must be a registered or part of a registered domain name on the Internet. for that I need Domain name being used from customer .
Please do correct me if I am wrong about certificate understanding :
since Guest will be the outside users , we can not use certificate from internal CA , we need to get the certificate from service provider and install the same in both the ISE servers
Can anybody explain the procedure to opt the public certificate for HTTPS from service provider ? And how do i install it in both the ISE servers ?

Hi there. Let me try answering your questions:
PSN HA: The PSNs are not configured as "primary" or "secondary" inside your ISE deployment. They are just PSN nodes as far as ISE is concerned. Instead, inside your NADs (In your case WLCs) you can specify which PSN is primary, which one is secondary, etc. You can accomplish this by:
1. Defining all PSN nodes as AAA radius servers inside the WLC
2. Then under the SSID > AAA Servers Tab, you can list the AAA servers in the order that you prefer. As a result, the WLC will always use the first server listed until that server fails/gets reloaded, etc.
3. As a result, you can have one WLC or SSID prefer PSN server A (located in primary DC) while a second WLC or SSID prefer PSN server B (located in backup DC)
Last but not the least, you could also place PSNs behind a load balancer and that way the traffic would be equally distributed between multiple PSNs. However, the PSN nodes must be Layer 2 adjacent, which is probably not the case if they are located in two different Data Centers
Certificates: Yes, you would want to get a public certificate to service the guest portal. Getting a public/well known certificate would ensure that most devices out there would trust the CA that signed your ISE certificate. For instance, VeriSign, GoDaddy, Entrust are some of the ones out there that would work just fine. On the other hand, if you use a certificate that was signed by your internal CA, then things would be fine for your internal endpoints that trust your internal CA but for any outsiders (Guests, contractors, etc) that do not trust and do not know who your internal CA is would get a certificate error when being redirected to the ISE guest portal. This in general is only a "cosmetic" issue and if the users click "continue" and add your CA as a trusted authority, the guest page would load and the session would work. However, most users out there would not feel safe to proceed and you will most likely get a lot of calls to your helpdesk :)
I hope this helps!
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Windows client intermittent connection to PEAP WIFI backed off to ISE 1.2 wildcard cert

I am setting up a topology whwere for the first time I am deplying ISE with a wildcard certificate. This is on ISE 1.2 patch 6, WLC's running 7.6 and Windows 7 clients in AD. The ISE policy is just to match on machine auth.
The setting up of the wildcard cert went ok as guided by the CCO ISE 1.2 deployment/cfg guide.
When it came to testing the client auth as always I start off with the PEAP settings of Validate server certificate off, just to confirm the WLC and ISE are playing ball. They were, the auth passed.
I then tick the Validate server certificate, make sure the CA (Windows AD) is in the Trusted Root Certification Authorities. Retest and the client passes.
If I then disconnect the wifi and reconnect, either manually or by doing a reboot, the next authenticaiton fails, but nothing has changed. ISE reports that my Windows client rejected the server certificate. Which is odd as it just accepted it.
If I untick the validate the client passes, if i tick it again it will authenticate fine, once. The next connection it will fail again with the client rejecting ISE.
Anyone got any ideas?

I have had a similar issue consistently with 1.2 on both pathc 5 and 6 (not sure about earlier one). Basically what I am seeing is the client rejecting the Server cert when validate is unticked. Most of the time the client connects just fine a few seconds later but some clients need a reboot to fix it. As a rule I put this down to client issue but not 100% sure some times.

Ironport email appliance : can i use a wildcard cert for TLS ?

Hi all,
We have 2 ironport C170 email appliance. I would like to use a wildcard SSL Cert from Digicert for TLS communication. I have 2 questions about it :
1/ Is it possible to use wildcard certificat on ironport ?
2/ Is there any known problem with wildcard certificat for TLS use ?
I found 2 (old) post about that :
https://supportforums.cisco.com/discussion/10479161/tls-support-wildcard-cert
http://www.symantec.com/connect/forums/someone-wants-enforce-tls-us-and-use-wildcard-cert
Does someone has experience about it ?
Thanks.

My experience is that it works fine.
If you have multiple domains, you have to make sure that the MX records point to the A record of the box you have certs for.
eg. something like this:
mx domain1.com smtp.domain2.com
mx domain2.com smtp.domain2.com
a smtp.domain2.com x.x.x.x

Cisco ISE for 802.1x (EAP-TLS)

I work for a banking organization and security is an area that needs to be improved continuously. I am planning on implementing Cisco ISE for 802.1x together with a Microsoft PKI for certificate issuing and signing.
I am currently trying to implement this in our test environment and I have managed to do a few basic bootstrapping tasks. I need someone to push me into the right direction as to how I can achieve what i am seeking.
I will use Cisco 2900 series switches on the access layer and a few HP switches as well which supports 802.1x.
I want to configure the ISE to process authentication requests using 802.1x EAP-TLS (Certificate Based). All the workstations on the domain needs to authenticate itself using the certificates issued to it by the Certificate Issuing Authority.
I have already managed to get the PKI working and have rolled out the certificates on all the workstations on the test environment. I can't seem to configure the Authentication portion on the ISE.
I request if someone can guide me or direct me to materials that can help achieve the above requirements. The guides available on the Cisco website are overwhelming and I can't seem to figure out how I am supposed to configure the authentication portion.
My email: [email protected]
Cheers,
Krishil Reddy

Hello Mubashir,
Many timers can be modified as needed in a deployment. Unless you are experiencing a specific problem where adjusting the timer may correct unwanted behavior, it is recommended to leave all timers at their default values except for the 802.1X transmit timer (tx-period).
The tx-period timer defaults to a value of 30 seconds. Leaving this value at 30 seconds provides a default wait of 90 seconds (3 x tx-period) before a switchport will begin the next method of authentication, and begin the MAB process for non-authenticating devices.
Based on numerous deployments, the best-practice recommendation is to set the tx-period value to 10 seconds to provide the optimal time for MAB devices. Setting the value below 10 seconds may result in the port moving to MAC authentication bypass too quickly.
Configure the tx-period timer.
C3750X(config-if-range)#dot1x timeout tx-period 10

I don't have access to Google Images Search since I installed the latest update for https everywhere (today)

I have installed the https everywhere add-on a while ago.
Since I've done this I've never been able to click on images each time I was doing a Google search from their first page of results ("search everything"), but I could still find images by going directly to Google Images search.
Since I installed the latest update for https everywhere this morning, I simply cannot search a single image with Google, which is a problem as I'm a professional art historian.
I get the message"Your search - rembrandt - could not be completed with the requested search options. Reset search tools".
But resetting the search tools don't change anything. I'm working on a Mac, if it helps.

I had the same problem although it was a previous update rather than this one that caused the problem. Just hadn't got round to doing something about it - was using Bing images instead.
I searched for some answers this morning and seemed like most suggestions were a nuisance to try. Couldn't find 'Preferences button of HTTPS-Everywhere' as suggested above. Decided to check if No Script was blocking it. Sure enough. So problem is solved.
Thought I'd put it out there in case it helps someone else. Appreciate that people are so helpful on here.

ISE 1.2 EAP Chaining and Windows 8 - Auth failures

Hi All,
I've got a couple sites that appear to have issues with EAP chaining, ISE 1.2 and Anyconnect client on windows 8 enterprise.
Basically the windows 8 machines authenticate intermittently and randomly but largely fail auth.
Often the client will work perfectly for a boot even after a few reboots etc and then might stop working. Other clients won't work at all no mater what settings you configure.
Outer Method - EAP-FASTv2
Inner Method - MSChapV2
ISE 1.2 with Patch 1 (latest)
Windows 8 Enterprise - with patch http://support.microsoft.com/kb/2743127
Anyconnect Client 3.1.0466 (latest)
Machine and User Auth Against AD.
Cert checks disabled for testing.
Clients using same configuration.xml file
Symptom is Anyconnect prompts for username / password instead of using existing credentials. Typing credentials doesn't work.
Logs show failed "anonymous" authentications or client EAP timeouts.
Cheers
Peter.

Hi Peter,
It sounds like the Inner Method is not being negotitated properly so its only reading the Outer Method which by default is set to show "Anonymous" in AnyConnect Profiles.
Is it possible to upload a PDF version or copy paste the output of the failure from ISE's perspective?
Kind Regards,
Vlad

Installing wildcard certificate in a WLC (ver 7.0.240 and 7.5.102)

Is it possible to install a widcard certificate for web auth in those versions?
Is there any difference between this two versions.
Are both of them versions supporting wildcards certificates?
Here you have the log file resulting of installing the wildcart certificate in the wlc with v 7.0.240.
*TransferTask: Nov 28 11:20:51.117: Memory overcommit policy changed from 0 to 1
*TransferTask: Nov 28 11:20:51.319: Delete ramdisk for ap bunble
*TransferTask: Nov 28 11:20:51.432: RESULT_STRING: TFTP Webauth cert transfer starting.
*TransferTask: Nov 28 11:20:51.432: RESULT_CODE:1
*TransferTask: Nov 28 11:20:55.434: Locking tftp semaphore, pHost=10.16.50.63 pFilename=/wild2013_priv.pem
*TransferTask: Nov 28 11:20:55.516: Semaphore locked, now unlocking, pHost=10.16.50.63 pFilename=/wild2013_priv.pem
*TransferTask: Nov 28 11:20:55.516: Semaphore successfully unlocked, pHost=10.16.50.63 pFilename=/wild2013_priv.pem
*TransferTask: Nov 28 11:20:55.517: TFTP: Binding to local=0.0.0.0 remote=10.16.50.63
*TransferTask: Nov 28 11:20:55.588: TFP End: 1666 bytes transferred (0 retransmitted packets)
*TransferTask: Nov 28 11:20:55.589: tftp rc=0, pHost=10.16.50.63 pFilename=/wild2013_priv.pem
pLocalFilename=cert.p12
*TransferTask: Nov 28 11:20:55.589: RESULT_STRING: TFTP receive complete... Installing Certificate.
*TransferTask: Nov 28 11:20:55.589: RESULT_CODE:13
*TransferTask: Nov 28 11:20:59.590: Adding cert (5 bytes) with certificate key password.
*TransferTask: Nov 28 11:20:59.590: RESULT_STRING: Error installing certificate.
*TransferTask: Nov 28 11:20:59.591: RESULT_CODE:12
*TransferTask: Nov 28 11:20:59.591: ummounting: <umount /mnt/download/ >/dev/null 2>&1> cwd = /mnt/application
*TransferTask: Nov 28 11:20:59.624: finished umounting
*TransferTask: Nov 28 11:20:59.903: Create ramdisk for ap bunble
*TransferTask: Nov 28 11:20:59.904: start to create c1240 primary image
*TransferTask: Nov 28 11:21:01.322: start to create c1240 backup image
*TransferTask: Nov 28 11:21:02.750: Success to create the c1240 image
*TransferTask: Nov 28 11:21:02.933: Memory overcommit policy restored from 1 to 0
(Cisco Controller) >
Would I have the same results in wlc with v 7.5.102?
Thank you.

Hi Pdero,
Please check out these docs:
https://supportforums.cisco.com/thread/2052662
http://netboyers.wordpress.com/2012/03/06/wildcard-certs-for-wlc/
https://supportforums.cisco.com/thread/2067781
https://supportforums.cisco.com/thread/2024363
https://supportforums.cisco.com/community/netpro/wireless-mobility/security-network-management/blog/2011/11/26/generate-csr-for-third-party-cert-and-download-unchained-cert-on-wireless-lan-controller-wlc
Regards
Dont forget to rate helpful posts.

ISE problem with EAP-TLS Supplicant Provisioning

Hi All,
I have a demo built using ISE v1.1.3 patch 1 and a WLC using v7.4.100.0 software. The aim of the demo is to provision a device's supplicant with an EAP-TLS Certificate... 'device on-boarding'
The entire CWA / Device Registration process is all fine and works well. I'm using a publically signed Cert on ISE that is built from [Root CA + Intermediate CA + Host Cert] which is used for both HTTPS and EAP and I also have SCEP operating against my Win 2k8 Enterprise Edition CA that is part of my Active Directory. All of this works fine.
The problem is that when ISE pushes the WLAN config down to the device, it instructs the Client to check for the Root CA, but the RADIUS processes within ISE are bound to the Intermediate CA. This leads to a problem where the Client doesn't trust the Certificate presented to it from ISE. There doesn't seem to be any way to configure this behaviour within ISE.
Has anybody else encountered this? Know a solution? Have suggestions for a workaround?
Cheers,
Richard
PS - Also using WinSPWizard 1.0.0.28

Hi Richard,
This is a misbehavior that ISE is provisioning the intermediate CA certificate during the BYOD registration process in similar (hierarchical certificate authority) scenarios. It is going to be fixed soon. Engineering is almost ready with the fix.
Istvan Segyik
Systems Engineer
Global Virtual Engineering
WW Partner Organization
Cisco Systems, Inc
Email: [email protected]
Work: +36 1 2254604
Monday - Friday, 8:30 am-17:30 pm - UTC+1 (CET)

Guest Cert problems ISE and Anchor WLC

I'm setting up new Guest Wireless, I have 2 internal foreign 5508 WLC's talking to 2 DMZ anchor WLC's. The guest connects to Guest SSID and the anchor controllers acts as a DHCP server, the Guest interface configured on the WLC is the in the range of the DHCP scope I've setup. The DHCP scope is using the anchor WLC Mgmt interface as the DHCP server.
Guest SSID - is setup for Webauth and Guest is redirected to the ISE server https://wlc.company.com/login...., when the page is presented to the Guest they get cert problem because the cert is not trusted (its an Internal Cert), Guest logins in ok and the AUP says "cert not trusted" 1.1.1.1 name of the WLC wlc.company.com.
In the browser Guest has https://wlc.company.com/loginredirecthttps://1.1.1.1........
1.1.1.1 is the Virtual interface of the Anchor WLC.
How can I get the client to stop using the Virtual Interface for cert. Why is the WLC doing this? I gather something to do with DHCP?
My plan is to apply a External Cert on the ISE for Guests, that way they will automatically trust a cert from Geotrust for example. But I'm going to still run into this Cert "not trusted" problem where the Guest is not trusting the WLC anchor Virtual Interface 1.1.1 . Why is the guest using the Virtual interface error 1.1.1.1. I've even added the ISE name of the cert to the Virtual interface, same problem, instead its just says wlc.company.com not trusted. I have also imported the cert onto the WebAuth cert on anchor WLC, still doesn't work.
Hopefully I've explained this ok.....any ideas? but if the Guest page keeps getting presented with
https://wlc.company.com/loginredirecthttps://1.1.1.1........ it will never work.

I followed Richard's advice and started from scratch, removing LWA and implementing CWA -MAB. It didn't take too long to setup CWA and get authentication working, I appled a Preauth ACL on WLC's and on ISE under Authorization pofile (CWA)
This is when the problems started happening, I was using the default ISE Authorization profile
cisco-av-pair = url-redirect=https://ip:8443/guestportal/gateway?sessionid=SessionValueIdValue&action=cwa.which is not what I want, again the certificate is the server cert which is not an external Cert that the guest wants to see. The user can login fine, unlike LWA, with Firefox or IE it would accept the cert and login so at least I had a working Guest wifi solution. Though there was a cert error symbol at the end of the browser url.
The next step I tried was to change the Authorization Profile to
(wireless.company.com which is a C-NAME for ISE box and has this Alias in the cert, this was a test before I apply the external cert)
cisco-av-pair = url-redirect=https://wireless.company.com:8443/guestportal/gateway?sessionid=SessionValueIdValue&action=cwa
I applied the change and the new page appeared on the users laptop, great, but this time users were declined access via live Authentications, reason "Cannot login due to session id expiry, please login a again", I created a new user a/c, same problem. Not good. Ok so I thought well if I want clear all these stale session id's that appartenly exist I'll stop/start the application which I did from the command line, still the same error "Cannot login due to session id expiry". hmmm, whats going on here.
I then rebooted the ISE (this must clear all the sessions!), reboot I performed from home and now for some reason I cannot login to the ISE front end GUI with the admin account or my account. Tried resetting the GUI password for admin and other admin users, the message "Error: cannot reset password this can only be performed on Standalone or Primary node" Well what have I done, just rebooted ISE nothing else apart from changing authorization profile. This box is a Standalone node. Without seeing if the clients connect due t no GUI access, I have referred this issue to TAC!
Also I don't like the fact that your have to install a external cert against the internal node name, epsecially when its external. But again I haven't reached this part yet.

Federation with wildcard cert

Hi,
We have multiple SIP domains, and I am trying to reduce the number of certificates needed.
I use a wildcard cert for one of the domains for the Edge and reverse proxy.
It works fine to connect from outside etc. But federation is not working.
In the DNS SRV record _sipfederationtls._tcp.domain2.com I have put the address sip.domain2.com as hostname, but it's actually pointing to a address that have the wildcard cert for *.mydomain1.com
Is there some way to make this work without buying many certs?

Hi,
It is not supported to use wildcard certificate for Edge Server external interface. You need a public SAN certificate to support federation. You can use wildcard certificate for Reverse Proxy.
For more Server Roles which wildcard certificate can be used in Lync Server environment, you can refer to the link below:
https://technet.microsoft.com/en-us/library/hh202161.aspx
Best Regards,
Eason Huang
Eason Huang
TechNet Community Support

Installing wildcard cert on ISE for HTTP/EAP

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