24 lines
1.5 KiB
Plaintext
24 lines
1.5 KiB
Plaintext
The roadwarriors <b>carol</b> and <b>dave</b> set up a connection each to gateway <b>moon</b>
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using EAP-TTLS authentication only with the gateway presenting a server certificate and
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the clients doing EAP-MD5 password-based authentication.
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In a next step the EAP-TNC protocol is used within the EAP-TTLS tunnel to determine the
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state of <b>carol</b>'s and <b>dave</b>'s operating system via the <b>TNCCS 2.0 </b>
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client-server interface compliant with <b>RFC 5793 PB-TNC</b>. The OS IMC and OS IMV pair
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is using the <b>IF-M 1.0</b> measurement protocol defined by <b>RFC 5792 PA-TNC</b> to
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exchange PA-TNC attributes.
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<p>
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<b>carol</b> sends information on her operating system consisting of the PA-TNC attributes
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<em>Product Information</em>, <em>String Version</em>, <em>Numeric Version</em>,
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<em>Operational Status</em>, <em>Forwarding Enabled</em>, and
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<em>Factory Default Password Enabled</em> up-front, whereas <b>dave</b> must be prompted
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by the IMV to do so via an <em>Attribute Request</em> PA-TNC attribute. <b>carol</b> is
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then prompted to send a list of installed packages using the <em>Installed Packages</em>
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PA-TNC attribute whereas <b>dave</b>'s "Windows 1.2.3" operating system is not supported
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and thus <b>dave</b> receives a <em>Remediation Instructions</em> PA-TNC attribute.
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<p>
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<b>carol</b> passes the health test and <b>dave</b> fails. Based on these assessments
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which are communicated to the IMCs using the <em>Assessment Result</em> PA-TNC attribute,
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the clients are connected by gateway <b>moon</b> to the "rw-allow" and "rw-isolate"
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subnets, respectively.
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</p>
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