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ClearPass 802.1x with Cisco IP Phones

We are trying to configure ClearPass 802.1x Authentication with Cisco IP Phones (CP-7841 models). The phones have pre-installed Manufacturing Installed Certificate (MIC). We tried installing the Cisco Manufacturing Certificate CA in the trusted CAs in ClearPass, but the phones still fail to authenicate. Any Suggestions? Thanks in advance.

Guru Elite

Re: ClearPass 802.1x with Cisco IP Phones

What is shown on the alerts tab?

Tim Cappalli | Aruba Security
@timcappalli | timcappalli.me | ACMX #367 / ACCX #480
New Contributor

Re: ClearPass 802.1x with Cisco IP Phones

Hi cappalli,

I currently do not have access to ClearPass but I can gather this info ASAP. As I remember, it was popping out a message "timed out" on the monitoring tab.

New Contributor

Re: ClearPass 802.1x with Cisco IP Phones

Attached

Frequent Contributor II

Re: ClearPass 802.1x with Cisco IP Phones

Looks like a cert trust issue to me. Please go through below link for " Client did not complete EAP transaction"

https://community.arubanetworks.com/t5/Security/RADIUS-Client-did-not-complete-EAP-transaction-Clearpass-6-3-1/m-p/164042#M12353

JayBee
ACDX | ACCX| CCIE (RnS/SP,DC) | ACCP | ACMP | ACSA | ACMA | JNCIS | JNCIA
If the provided solution resolves your issue, please mark it as accepted solution to help others.

Re: ClearPass 802.1x with Cisco IP Phones

Hi;

 

 The authentication method for Cisco ip phones is EAP-MD5.

 

 I hope it helps.

 

 Angel De la Encarnacion.

 

ACMP, ACCP, ACDX #544

 

If this post is helpful, a kudo is appreciated.

Angel De la Encarnacion

ACMP, ACCP, ACDX #544, ACSA
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