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I have the following Cat 93000 config and am wondering how to get dynamic author to work:
c9300#sh runBuilding configuration...
Current configuration : 20458 bytes!! Last configuration change at 14:41:47 CST Wed Jan 23 2019 by shkhan!version 16.10n...
The switch is getting the CoA request from ISE, you see that in the packet trace. The switch responds by ping'ing ISE on port 1700. Port is unreachable.