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T46g & T48G RADIUS 802.1x and SHA256
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Bryan Nelson Offline

Posts: 71
Joined: Feb 2013
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Post: #14
RE: T46g & T48G RADIUS 802.1x and SHA256
Hello all,

We were also having issues with 802.1x and newer firmware, and our issue was related to the Extended Key Usage extension on the certificate itself. If client authentication was an allowed purpose, the certificate is rejected by the phone with "certificate unknown" as the error.

Extended Key Usage
Allowed Purposes: Server Authentication
,Client Authentication

This may or may not be the problem you are running into, as we likely use a very different setup. If anyone has any questions, feel free to PM me.

Thanks to Karl for assisting in solving this problem for us!
(This post was last modified: 04-07-2017 09:59 PM by Bryan Nelson.)
04-07-2017 09:48 PM
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RE: T46g & T48G RADIUS 802.1x and SHA256 - Bryan Nelson - 04-07-2017 09:48 PM

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