Refer to the exhibit. R3 cannot authenticate via TACACS. Which configuration resolves the issue?
tacacs server SITE6_TACACS
key C!scOTACACS
address ipv4 10.60.66.66
key C!scoTACACS
key CiscoTACACS
address ipv4 10.66.66.66
key CIscoTACACS
Submit