多选题Which two configuration elements are required for a policy-based VPN？（）AIKE gatewayBsecure tunnel interfaceCsecurity policy to permit the IKE trafficDsecurity policy referencing the IPsec VPN tunnel
题目
多选题
Which two configuration elements are required for a policy-based VPN？（）
A
IKE gateway
B
secure tunnel interface
C
security policy to permit the IKE traffic
D
security policy referencing the IPsec VPN tunnel