Question

A network engineer is deploying ISE profiling for a large campus. Endpoints authenticate via MAB on switches, and the engineer wants ISE to collect DHCP attributes (such as dhcp-class-identifier) without deploying an ISE anycast helper or configuring 'ip helper-address' pointing to the PSN. The switches already forward RADIUS accounting to ISE. Which probe should the engineer enable to gather these DHCP attributes with minimal additional network configuration?

Accepted Answer

Enable the RADIUS probe so ISE parses DHCP attributes forwarded within RADIUS accounting packets from the switch

Answer

Enable the DHCP SPAN probe on the PSN interface connected to the access layer

Answer

Enable the NetFlow probe to capture DHCP option data from the switch

Answer

Enable the SNMP Query probe to poll the switch for endpoint DHCP bindings