topic Best authentication method for controlling access to wlan in Wireless

Best authentication method for controlling access to wlan

johnfplut — Sun, 04 Jul 2021 07:00:48 GMT

What is the best method for controlling access to a wlan with a 5508 wlan controller

The requirments are

-Needs to support all types of clients (Mac, PC, smartphones, tablets)

-Clients need to be able to connect easily and without errors or installing certs or wireless profiles etc..

-Secure

This doesn't seem like alot to ask but I keep running into problems.

What are people using?

Thanks

Best authentication method for controlling access to wlan

Stephen Rodriguez — Wed, 01 May 2013 18:50:35 GMT

Well, this is easier than you would think actually.

-Needs to support all types of clients (Mac, PC, smartphones, tablets) --- Limits you to PEAP and EAP-TLS all devices should support these EAP types

-Clients need to be able to connect easily and without errors or installing certs or wireless profiles etc.. -- This removes TLS as you do not want to deal with certificates, and leaves you with PEAP. Now the user will still have to create a profile but that only takes a minute or so.

-Secure -- PEAP is secure if you are using the right type of encryption as well, I would recommend WPA2/AES. And it since it's EAP the user just needs to have valid domain credentials.

HTH,
Steve

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Best authentication method for controlling access to wlan

Jatin Katyal — Wed, 01 May 2013 19:47:09 GMT

I agree with stephen. Peap Mschapv2 suits your requirements.

This would help you while implementing PEAP with ACS 5 in your enviornment.

http://www.cisco.com/en/US/products/ps10315/products_configuration_example09186a0080b4cdb9.shtml

Let me know if you have some other radius server and you need help on it.

Jatin Katyal
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Best authentication method for controlling access to wlan

johnfplut — Wed, 01 May 2013 20:05:44 GMT

I have been trying to set up PEAP with MS/Chap2 with a Windows Radius server but all the clients get cert errors. I have tried many different certs and types of certs and all clients still get cert errors.

-Is it possible to get it working without cert errors for all clients? Am I just having a problem with my cert or is this a known issue?

-Do I need to buy ACS to get it working without cert errors?

Thanks for your help.

Best authentication method for controlling access to wlan

Jatin Katyal — Wed, 01 May 2013 20:12:12 GMT

Could you please share the error you're getting while authenticating?

are you looking inside the event viewer logs?

What all certs have you installed on the radius server and client?

Jatin Katyal
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Best authentication method for controlling access to wlan

johnfplut — Wed, 01 May 2013 20:33:49 GMT

I am using a Geotrust QuickSSL Premium cert. I have tried generating it many different ways. When I put the cert on a wesite on my Radius server and hit it with a cert checker it says the cert chain is good.

## On the Mac I get ##

Before authenticating to the server "corp-vs-ca2.#####.com" you should examine the certificate to ensure that it is appropriate for this network.

## On Windows I get ##

The credentials provided be the server could not be validated.

Under the details it says

The server corp-vs-ca2.#####.com" presented a valid certificate issued by "GeoTrust Global CA", but GeoTrust Global CA" is not configured as a valid anchor for this profile.

I think I can fix the Windows error by pushing the cert out with a group policy, but am trying to fix all the other clients.

Thanks.

Best authentication method for controlling access to wlan

Jatin Katyal — Wed, 01 May 2013 20:36:28 GMT

Could you please provide the whole cert chain?

Also, what error are you getting on radius server > event viewer tab?

Jatin Katyal
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Best authentication method for controlling access to wlan

Stephen Rodriguez — Wed, 01 May 2013 20:43:30 GMT

Mac should allow you to install teh certificate into the keychain.

for windows, yes you can push it via GPO, and if you're going to do that you might as well push the profile config as well.

alternately you can just uncheck the validate server certificate checkbox in WZC.

HTH,
Steve

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Best authentication method for controlling access to wlan

johnfplut — Wed, 01 May 2013 21:38:40 GMT

I can't find an errors in any area of the event viewer.

Here is these files cat'd together.

GeoTrustGlobalCA

GeoTrustDVSSLCA

corp-vs-ca2.########-export

-----BEGIN CERTIFICATE-----

MIIDVDCCAjygAwIBAgIDAjRWMA0GCSqGSIb3DQEBBQUAMEIxCzAJBgNVBAYTAlVT

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-----END CERTIFICATE-----

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-----END CERTIFICATE-----

-----BEGIN CERTIFICATE-----

MIIFaDCCBFCgAwIBAgIDBo5UMA0GCSqGSIb3DQEBBQUAMGExCzAJBgNVBAYTAlVT

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-----END CERTIFICATE-----

Best authentication method for controlling access to wlan

johnfplut — Wed, 01 May 2013 22:21:32 GMT

Does ACS solve the issues of the cert errors on the client when you connect?

Best authentication method for controlling access to wlan

Jatin Katyal — Fri, 03 May 2013 09:21:35 GMT

Are you using IAS or NPS. I can tell you where to look at logs.

The cert you provided only shows root CA somehow.

With Peap, you should have server, root CA and intermediate certificate (if any) instaled on the radius server.

On the client you should only have root CA and intermediate if (any)

To best way to check this is to uncheck the validate server certificate from the client machine and select PEAP mscahp v2 as an authentication eap method.

Jatin Katyal

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Best authentication method for controlling access to wlan

Jatin Katyal — Mon, 06 May 2013 20:17:46 GMT

It can be addressed with IAS and NPS if we have the right chain installed.

Jatin Katyal

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