156-215.80 · Question #388
Which message indicates IKE Phase 2 has completed successfully?
The correct answer is A. Quick Mode Complete. IKE Phase 2 negotiation uses Quick Mode, so successful completion is indicated by the 'Quick Mode Complete' message.
Question
Which message indicates IKE Phase 2 has completed successfully?
Options
- AQuick Mode Complete
- BAggressive Mode Complete
- CMain Mode Complete
- DIKE Mode Complete
How the community answered
(38 responses)- A87% (33)
- B8% (3)
- C3% (1)
- D3% (1)
Why each option
IKE Phase 2 negotiation uses Quick Mode, so successful completion is indicated by the 'Quick Mode Complete' message.
IKE Phase 2 is conducted using Quick Mode, which negotiates the IPsec SAs (Security Associations) used to protect actual data traffic. When this negotiation finishes successfully, the process logs 'Quick Mode Complete', confirming that the IPsec tunnel is established and ready for use.
Aggressive Mode is an alternative to Main Mode and belongs to IKE Phase 1, not Phase 2.
Main Mode is the standard IKE Phase 1 exchange method and is unrelated to Phase 2 completion.
'IKE Mode Complete' is not a defined or standard message in the IKE negotiation process.
Concept tested: IKE Phase 2 Quick Mode completion status
Source: https://www.cisco.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike-protocols/14106-how-ike-works.html
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