AP1200 and EAP

Hello,
I want to configure LEAP with ACS on my AP1231.
(config-if)#ssid test
(config-if-ssid)#authentication network-eap myEAP
I configure LEAP on Cisco clients too with 802.1x -> LEAP.
When I want to associate and authenticate my client, there is the window "LEAP authentication" and the process failed (sometimes after 10 ou 15min, the process and the authentication succeed). There is no log on ACS (on failed or passed authentications log). If I put on the "debug dot11 aaa dot1x all", nothing appears (except when there is an passed authentication).
In the same time, if I try to configure EAP, I've got many troubles with network connections after the tries, even if I disable LEAP. I know that 802.1x blocks the connection if there is a failed authentication, but I don't know how long it is...
If someone could help me..
Thank You

aaa group server radius ACS
server 10.0.0.1
server 10.0.0.2
aaa authentication login myEAP group ACS
interface Dot11Radio0
encryption key 1 size 128bit 7 xxxxxxxxxxxxxxxxxxxxx transmit-key
encryption mode wep mandatory
ssid MyNetwork
authentication open eap myEAP
authentication network-eap myEAP
radius-server host 10.0.0.1 key sekrit
radius-server host 10.0.0.2 key sekrit

Similar Messages

EAP-TLS and EAP-PEAP Clients

Hi guys
I have installed a dot.1x solution for a customer using ISE. The ip phones have certificate from CUCM server. In the ISE a wired-dot.1x with eqp-tls enabled policy is configured so that when ip phones or PC connect to network they get authenticated using EAP -TLS. I have required certificates imported on pc's and ISE server. That part works absolutely fine.
Now I have been asked to configure EAP-PEAP for video end points which doesn't support EAP -TLS.
The endpoints are configured with a username and password. The credentials are created in ISE server.
I create a second policy for wired dot.1x with EAP - PEAP enabled
The problem I am hitting is that if the PCM and phone policy is on top. The phone and pc gets authenticated. But video endpoint doesn't. I get authentication error messages saying certificate expected but received credentials.
When I move the video end point authentication rule above the pc and phones. The video end points get authenticated successfully. But PC and phone authentication breaks. The error message I receive is saying usrname and password expected but received a certificated based authentication.
Has anyone seen this type of scenario ? Any idea how to make EAP -PEAP and EAP TLS authentication work together ?
Thanks in advance.
Sent from Cisco Technical Support iPad App

Hi,
There are two ways you can tackle this with ISE, I will start with the easiest one and then the other one to cover your options.
You need to create an identity store sequence. This allows you to mix both certificate based and password based authentications, keep in mind that you can only map one Certificate authentication Profile in when using identity store sequences. More informations about configuring this is provided below:
http://www.cisco.com/en/US/docs/security/ise/1.1/user_guide/ise_man_id_stores.html#wp1117203
The next option would be to use the authentication policy configuration to map the patterns of the username (if common with your video endpoints), to forward their requests to the internal identity store. You can use regex to make this work and you can check for the radius username attribute.
Thanks,
Tarik Admani
*Please rate 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

Other LEAP upgrade options besides PEAP and EAP-FAST?

Currently I'm using LEAP for authentication on my AP's at roughly 200 remote locations, with about 6 AP's per site. These are performing local Radius authentication on the AP's themselves. We are using non-dictionary passwords, so I'm not too worried about a ASLEAP attack. However, I've been asked to look into other alternatives besides LEAP for security.
Here's the problem.... there is no way my company will pay for a Radius server at each individual location. As both PEAP and EAP-FAST seem to require an actual Radius server as opposed to an AP acting as one, to use either means authentication would have to happen back to the central office servers over our WAN. That is going to generate an unacceptable amount of WAN traffic, as well as leave us stranded should the WAN connection go down, as happens to at least one site once a week or so. Do I have any other options, are are they superior to my current LEAP setup?

A comparable system might be to use WPA - PSK (Pre-Shared Key) w/ TKIP.
TKIP will keep the key rotation, and if you start with a strong PSK, you should be OK. WPA - PSK doesn't need a RADIUS server or certificates to work.
Pre-shared keys could conceivably be defeated by a brute force attack, but you can control that aspect somewhat with a lockout after X number of failed attempts.
You could also toss on some MAC filtering but, depending on your user base, it can be an administrative nightmare.
If all of your remote sites are tied back to your home network, you could try a central RADIUS, and local Certificate Authority (both can be on an existing WIN2K or better server) at the home office, then use the remote RADIUS on the AP to proxy the requests back to the home office.
There are a couple approaches depending on your specific environment. Without a CA and RADIUS server (that supports certificates - I don't think the AP RADIUS does), your options are fairly limited. LEAP and WPA-PSK are probably as good as you're like to get.
Good Luck
Scott

No longer using Linksys router. Should I uninstall Cisco LEAP, PEAP, and EAP?

Should I uninstall the Cisco LEAP, PEAP, and EAP programs if I am no longer using a Linksys router? I am replacing with an Asus router.
thanks,
KG

Hi! It's best to uninstall them all if you are not going to use them for the sake of freeing some memory on your computer. Should you change your mind and get a new Linksys router one of these days, I am sure it will come with its own installation software anyway.

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.

AP1200 with EAP - dot11 holdoff timer

Hi all
We are running AP1200 with open eap. We are experiencing a transient problem with a couple unknown PC's attempting (and Failing) authentication every second. After some time, the memory gets fragmented on the AP, causing the AP to hang.
From the AP
>>>
Aug 4 14:12:17: %DOT11-7-AUTH_FAILED: Station 000e.d70f.441c Authentication fad
Aug 4 14:12:18: %DOT11-7-AUTH_FAILED: Station 000e.d70f.441c Authentication fad
Aug 4 14:12:19: %DOT11-7-AUTH_FAILED: Station 000e.d70f.441c Authentication fad
Aug 4 14:12:21: %DOT11-7-AUTH_FAILED: Station 000e.d70f.441c Authentication fad
Aug 4 14:12:22: %SYS-2-MALLOCFAIL: Memory allocation of 1500 bytes failed from
Pool: Processor Free: 122180 Cause: Memory fragmentation
Alternate Pool: None Free: 0 Cause: No Alternate pool
-Process= "Logger", ipl= 6, pid= 16
-Traceback= 10DDB0 10FF40 108EF0 117C20 366E0 368A0 442FC 445A8 47CEC 1337F8
Aug 4 14:12:23: %DOT11-7-AUTH_FAILED: Station 000e.d70f.441c Authentication fad
<<<
We have not been able to find this certain host.
We attempted to mitigate the failures using the "dot11 holdoff-timer 120". From the documentation this command looks like it will only take effect when performing MAC Authentication, yet in the configuration guide, it does not specify mac authen only. We have not had success in the lab.
Can anyone here shed some more light on this command.
TIA,
Alex

If all the PCs in your wireless network are working , then the unknown PCs could be some rogue devices trying to access the network. Since authentication is failing at every attempt it is clear that it is a rogue device trying to get entry in to the network.

ISE 1.2 and EAP-MD5

Hi,
I have HP procurve switches that need to get authenticated with EAP-MD5 but I cant get it to work in ISE 1.2 with patch 2.
We have tried all combination for EAP-MD5 in allowed protocols but get the same message when trying to authenticate.
The ISE deployemnt do not run in FIPS-140 2 mode.
And when using the switch with NPS we get this to work, so switch configuration is ok.
Failure Reason: 12003 Failed to negotiate EAP because EAP-MD5 not allowed in the Allowed Protocols
Resolution: Ensure that the EAP-MD5 protocol is allowed by ISE in Allowed Protocols.
Root cause :The client's supplicant sent an EAP-Response/NAK packet rejecting the previously-proposed EAP-based protocol, and requesting to use EAP-MD5 instead. However, EAP-MD5 is not allowed in Allowed Protocols.
Any thoughts on this?
Cheers

Choose Policy > Policy Elements > Results >Authentication > Allowed Protocols
Select EAP-MD5—Check the Allow EAP-MD5 check box and check Detect EAP-MD5 as Host Lookup check box.
Save the Allowed Protocol service.
~BR
Jatin Katyal
**Do rate helpful posts**

EAP TLS for machine and EAP PEAP for user

Hi forum
I am doing a design to use ISE to enforece dot1x for corporate machinese on both wired and wireless.
Due to the particular environment, we will need to use EAP-TLS for machines auth and on top of that use EAP-PEAP for user auth with windows credential and posture for full access.
Just wondering if anyone has done this before:
1. Will this work?
2. Any gottas?
3. what is the user experience like?
All machines are win7 based.
Thanks

You can not use the native supplicant for this. Cisco Anyconnect NAM will allow you to use this method. It is very simple to configure and deploy.
Tarik Admani
*Please rate helpful posts*

ISE and EAP-TLS

Hi
We're planning on implementing eap-tls for our corporate iPads and in the past I've successfully tested it authenticating against ACS5.3 but now that we've moved to ISE (1.1.1.24) I'm getting an error.
22045 Identity policy result is configured for password based authentication methods but received certificate based authentication request
I've tried two different profiles, one with a certificates and AD credentials and the other one with just certificates but the error message is the same for both.
EAP-TLS is enabled in the 'Default Network Access' authentication result.
Can anyone shine a light on where I'm going wrong?
Thanks
Martin

Martin,
Then that makes sense, since the ISE uses certificate based authentication when using eap-tls the certificate doesnt have the OIDs to support certificate based authentication. Here is a guide that shows the requirements needed in order to authenticate clients via certificates:
http://support.microsoft.com/kb/814394
Here is the comment in the article in this case the IAS is the radius server and the same holds true for ISE:
The IAS or the VPN server computer certificate is configured with the Server Authentication purpose. The object identifier for Server Authentication is 1.3.6.1.5.5.7.3.1.
Here is the Cisco eap-tls deployment guide which references the same as above:
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_white_paper09186a008009256b.shtml#wp39121
Thanks,
Tarik Admani
*Please rate helpful posts*

Cisco ISE - eap-peap and eap-tls

Hi,
Does anybody have an example of an ISE authentication policy where authentication requests coming from a WLC can be handled by TLS and PEAP?
I dont seem to get that working, I do however make the ISE application crash with my config which is not the idea.
If peap use this identity source, if tls use 'this certificate authentication profile'.
Thx

OK,
so I have just fired up my lab and I actually created an Identity Sequence which contained my AD & my certificate profile.
The authentication policy was allowing EAP-TLS & EAP-PEAP.
I then created 2 authorization rules, 1 for users and 1 for machines permitting access based on windows AD group.
What i found out was that the Windows 802.1x supplicant can only support 1 method of authentication, so if you want this to work properly, you need a different supplicant. I think Cisco do a more advanced one, not sure. You can then specifically choose that for machine auth you use EAP-TLS and for User Auth you use EAP-PEAP.
In my setup. Machine auth ONLY happens when the user logs off the machine and it is sitting at Ctrl+alt+del so that it can still talk to the network and get all relevant updates etc. I found that not only did the machine authenticate using EAP-PEAP, it also authenticated using TLS... I think that is because of the wireless settings I had. I chose EAP-PEAP for wireless settings
When the user then logs in, the user account authenticates using EAP-PEAP. I dont think you can authenticate both the logged on user and the machine at the same time. Not with the native windows supplicant anyway. Windows either sends authentication request for the user or the machine but not both.
Hope that helps.
Mario

EAP-TLS and EAP-FAST

Hi NetPro.
EAP-TLS is working now, but how to configure EAP-FAST as the backup in case TLS is failure then user still able to use FAST as the second choice ?
your reply will be highly appreciated.
thanks heaps.
Jack

All you really need to do is enabled EAP-FAST on the Radius server. If you are running a controller environment there isn't any changes on the controller needed. If you are running autonomous make sure you have both "authentication open..." and "authentication network-eap..." configured under the SSID. They only thing that would need to be changed would be the client. You could setup two profiles, one for TLS and the other for EAP-FAST.

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

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. ?

Cisco ISE Admin and EAP certificate renewal

Hi board,
maybe I'm asking a rather dumb question here, but anyway :)
I'm currently thinking about how to renew an admin/EAP certificate on an ISE node and the effect on the endpoint authentication.
Here's the thing I do, when I initially install an ISE node
1.) CSR creation on ISE (PAN) - CN=$FQDN$ and SAN="fqdn as well"
2.) Sign CSR and bind certificate on ISE node - done
Now after 10 month or so (if the certificate is valid for one year) I want to renew the ISE admin/EAP certificate.
CSR creation: I cannot use the $FQDN$ as the CN, because there is still the current certificate (CN must be unique in the store, right?)
So what to do now? Do I really need to create a temporary SSC and make it the admin/EAP certificate, delete the current certificate and then create a new CSR? There must be a better and more important non-disruptive way of doing this.
How do you guys do this in your deployments?
Thanks in advance and sorry again if this is a silly question.
Johannes

you can install a new certificate on the ISE before it is active, Cisco recommends that you install the new certificate before the old certificate expires. This overlap period between the old certificate expiration date and the new certificate start date gives you time to renew certificates and plan their installation with little or no downtime. Once the new certificate enters its valid date range, enable the EAP and/or HTTPS protocol. Remember, if you enable HTTPS, there will be a service restart
Certificate Renewal on Cisco Identity Services Engine Configuration Guide
http://www.cisco.com/c/en/us/support/docs/security/identity-services-engine/116977-technote-ise-cert-00.html

AP1200 and EAP

Similar Messages

Maybe you are looking for