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CCNP Security SISAS 300-208 Official Cert Guide by Kevin Redmon, Aaron Woland

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Verifying Certificate Authentications

To verify that a certificate authentication is working, you first need to have certificates provisioned. So, it’s a bit of a chicken-and-egg issue for those of you following along in the book. However, assuming you have a client that is already configured to use a certificate for authentication, you can follow along with your own install. If you don’t have clients configured yet, don’t worry—you can still follow along.

Cisco ISE has a phenomenally useful tool built in to it, commonly called Live Log. Live Log provides a near real-time view of all incoming authentications, change of authorizations (CoAs), and more.

Identifying a failed authentication is rather straightforward: failed authentications are highlighted. ...

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