Question 140 of 530 from exam 400-251: CCIE Security written exam

Question 140 of 530 from exam 400-251: CCIE Security written exam

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Refer to the exhibit of an ISAKMP debug.

processing SA payload. message ID = 0 Checking ISAKMP transform 1 against priority 10 policy encryption DES-cBC hash SHA default group 1 auth pre-share ‘ISAKMP atts are acceptable. Next payload is 0 ISAKMP SA is doing pre-shared key authentication ISAKMP processing KE payload. message ID = 0 ISAKMP (62)! processing NONCE payload. message ID = 0 ISAKMP SKEYID state generated ISAKMP (62); processing vendor id payload ISAKMP Speaking to another Cisco IOs box! ISAKMP: reserved not zero on ID payload! CRYPTO-4-TKMP_HAD MESSAGE: IKE message from 172.16.100.201 failed its sanity check or is malformed

Which message of the exchange is failing?

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A. B. C. D. E.

B.

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