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8 lines
762 B
Markdown
8 lines
762 B
Markdown
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# Change of Authorization (CoA)
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RADIUS Change of Authorization (CoA) is a feature that allows a RADIUS server to adjust an active client session. For instance, ISE can issue the CoA RADIUS attribute to an access device to force the session to be reauthenticated.
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An example is the use of CoA when the Threat-Centric Network Access Control (TC-NAC) detects a vulnerability. The TC-NAC is a feature that enables ISE to collect threat and vulnerability data from many third-party threat and vulnerability scanners and software. The purpose of this feature is to allow ISE to have a threat and risk view into the hosts it is controlling access rights for.
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