An engineer must force an endpoint to re-authenticate an already authenticated session without disrupting the endpoint to apply a new or updated policy from ISE. Which CoA type achieves this goal?
C is correct:
"CoA Session Reauthenticate Command
To initiate session authentication, the AAA server sends a standard CoA-Request message containing the
following VSAs:
Cisco:Avpair=“subscriber:command=reauthenticate” ...
The following rules apply:
• “subscriber:command=reauthenticate” must be present to trigger a reauthentication.
• If “subscriber:reauthenticate-type” is not specified, the default behavior is to rerun the last successful
authentication method for the session. If the method reauthenticates successfully, all old authorization
data is replaced with the new reauthenticated authorization data"
A - Bounce = session disrupted by disabling & enabling port
B - Terminate = session discarded
D - Session Query = ISE getting info about auth. session
"CoA Session Query Command
The CoA session query command requests service information about a subscriber session"
Source: https://www.cisco.com/en/US/docs/ios-xml/ios/san/configuration/xe-3se/3850/san-coa-supp.pdf
upvoted 2 times
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NikoNiko
10 months, 1 week ago