Which two probes must be enabled for the ARP cache to function in the Cisco ISE profile service so that a user can reliably bind the IP address and MAC addresses of endpoints? (Choose two.)

The correct answer is D. DHCP E. RADIUS. Cisco ISE implements an ARP cache in the profiling service, so that you can reliably map the IP addresses and the MAC addresses of endpoints. For the ARP cache to function, you must enable either the DHCP probe or the RADIUS probe. The DHCP and RADIUS probes carry the IP…

Profiler

Question

Options

ANetFlow
BSNMP
CHTTP
DDHCP
ERADIUS

How the community answered

(37 responses)

A
3% (1)
B
8% (3)
C
3% (1)
D
86% (32)

Explanation

Cisco ISE implements an ARP cache in the profiling service, so that you can reliably map the IP addresses and the MAC addresses of endpoints. For the ARP cache to function, you must enable either the DHCP probe or the RADIUS probe. The DHCP and RADIUS probes carry the IP addresses and the MAC addresses of endpoints in the payload data. The dhcp-requested address attribute in the DHCP probe and the Framed-IP-address attribute in the RADIUS probe carry the IP addresses of endpoints, along with their MAC addresses, which can be mapped and stored in the ARP cache. 1/admin_guide/b_ise_admin_guide_21/b_ise_admin_guide_20_chapter_010100.html

Topics

#Cisco ISE Profiling#Endpoint Probes#ARP Cache#IP-MAC Binding

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