A. There are five phases of IKE negotiation.
B. There are two phases of IKE negotiation.
C. IPsec VPN tunnels are not supported on SRX Series devices.
D. IPsec VPNs require a tunnel PIC in SRX Series devices.
参考答案：D
ATherearefivephasesofIKEnegotiationBTherearetwo
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