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After the server is securely authenticated to the client via its CA certificate and optionally the client to the server, the server can then use the established secure connection "tunnel" to authenticate the client. PEAP is an encapsulation, is not a method, but you are almost right again. It then creates an encrypted TLS tunnel between the client and the authentication server.
All of this info available at Wikipedia. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Asked 4 years, 9 months ago. Active 4 years, 9 months ago. Viewed 60k times. I'm having troubles understanding the differences between the 3. Each realm for which the user authentication will be performed on this RADIUS server should be configured by adding a record to the file named authfile as follows:.
The repository types you may configure are:. Detailed instructions for configuring repository types may be found in other documents.
Only a simple example will be offered here:. Example authfile entry:. In this example, user credentials for the realm example. This section describes how to configure realms that require identity protection. The first step is to create configuration profiles for the anonymous identities. You may configure one or more anonymous profiles. Their User-Names may include realms e. We recommend that you include the anonymous profile s in the users file. That way it will be cached in main memory for efficient reuse.
This also allows a User-Name such as anonymous realm1 to be processed by this server, but the protected user identities in realm1 to be proxied to another server via the authfile if that is desired. You have two options open to you as to where the actual user authentication will take place.
This section describes how to configure this option. Each realm for which the user authentication will be done on another RADIUS server should be configured by adding a record to the file named authfile as follows:.
All Rights Reserved. The client will still validate the certificate ISE it presenting to it if configured to do so , but it won't be used to setup a tunnel for encryption. When the client receives the ISE certificate and sees that it is a trusted certificate, it will proceed with sending its own certificate over in an attempt to authenticate itself.
ISE will then proceed to make a decision on how to treat the authenticated client. So, what's the big deal? Sending your certificate which has the public key included is not considered insecure or dangerous. A hacker can't really do much with the public key. Maybe they could use this information to dig deeper into your network. For all we know, maybe they've already obtained one of your client's certificate and the private key that belongs to it.
Knowing that certificates are used to grant network access, maybe they will give it a go and see what happens!
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