In an IPSec gateway-to-gateway configuration, two FortiGate units create a VPN tunnel between
two separate private networks.
Which of the following configuration steps must be performed on both FortiGate units to support
this configuration? (Select all that apply.)

A.
Create firewall policies to control traffic between the IP source and destination address.

B.
Configure the appropriate user groups on the FortiGate units to allow users access to the IPSec
VPN connection.

C.
Set the operating mode of the FortiGate unit to IPSec VPN mode.

D.
Define the Phase 2 parameters that the FortiGate unit needs to create a VPN tunnel with the remote
peer.

E.
Define the Phase 1 parameters that the FortiGate unit needs to authenticate the remote peers.