Which of these should you do before configuring IP Source Guard on a Cisco Catalyst switch?

Which of these should you do before configuring IP Source Guard on a Cisco Catalyst switch?

Which of these should you do before configuring IP Source Guard on a Cisco Catalyst switch?

A.
enable NTP for event correlation

B.
enable IP routing authentication

C.
configure an access list with exempt DHCP-initiated IP address ranges

D.
turn DHCP snooping on at least 24 hours in advance



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