ZyXEL Communications ZyWALL USG-Series - Set Up IPv6 Interfaces For Pure IPv6 Routing

ZyXEL – USG Application Notes
37
Step 18. Modify the IPSec connection profile. Go to Security >
Type of VPN: IKEv2
Data encryption: Requires encryption (disconnect if server declines)
Authentication: Use Extensible Authentication Protocol (EAP)