【多选题】
A network administrator is troubleshooting an EIGRP connection between RouterA， IP address10.1.2.1， and RouterB， IP address 10.1.2.2. Given the debug output on RouterA， which twostatements are true？（）<br /> <img src="https://nimg.ppkao.com/2018-07/tangxueping/2018072610544711589.jpg?sign=a71b90345c9373877f0a0d2ab9a57481&t=62d19edd" />
A、RouterA received a hello packet with mismatched metric-calculation mechanisms
B、RouterA received a hello packet with mismatched authentication parameters
C、RouterA will form an adjacency with RouterB
D、RouterA received a hello packet with mismatched autonomous system numbers
E、RouterA received a hello packet with mismatched hello timers
F、RouterA will not form an adjacency with RouterB
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