ZyXEL Communications P-202 - Manual (Page 158)

P-202H Plus v2 Support Notes
If you use SMT management, the VPN configurations are as shown below.
1. Edit IKE settings by selecting 'Edit IKE Setup' option in menu27.1.1 to 'Yes'
and then pressing 'Enter'.
2. There are two phases for IKE:
In Phase 1, two IKE peers establish a secure channel for key exchanging.
In Phase 2, two peers negotiate general purpose SAs which are secure channels
for data transmission.
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