09-05-2019 09:37 AM - edited 09-05-2019 09:52 AM
Can someone please explain why the authentication details report shows the authentication method is mab, but the switch shows as dot1x ? The phone's Mac is part of the mab list but the PC is part of AD.
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09-05-2019 11:06 AM
09-06-2019 06:46 AM
The only thing that would make sense is that it is authenticating with MAB first and then 802.1x is kicking in and authenticating that way. ISE Radius Live Logs probably shows both authentications as succeeded. Check the Live Logs and filter on the Endpoint ID (MAC Address). This would happen if your interface configuration is setup to do MAB first with the command "authentication order mab dot1x". And then you probably have "authentication priority dot1x mab" which means that it will do MAB but if an EAPOL frame is seen from the client, the switch will stop MAB immediately and start the dot1x process.
If you are doing IBNS 2.0, then the configuration is probably trying both MAB and 802.1x at the same time. Again, verify your ISE Live Logs to see if there are multiple entries for the same MAC address (Endpoint ID).
09-05-2019 11:06 AM
09-05-2019 12:34 PM
09-06-2019 06:26 AM
09-06-2019 06:46 AM
The only thing that would make sense is that it is authenticating with MAB first and then 802.1x is kicking in and authenticating that way. ISE Radius Live Logs probably shows both authentications as succeeded. Check the Live Logs and filter on the Endpoint ID (MAC Address). This would happen if your interface configuration is setup to do MAB first with the command "authentication order mab dot1x". And then you probably have "authentication priority dot1x mab" which means that it will do MAB but if an EAPOL frame is seen from the client, the switch will stop MAB immediately and start the dot1x process.
If you are doing IBNS 2.0, then the configuration is probably trying both MAB and 802.1x at the same time. Again, verify your ISE Live Logs to see if there are multiple entries for the same MAC address (Endpoint ID).
09-09-2019 01:29 PM
Thank you both Mike and Colby. Nice suggestions.
-Krishnan
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