ZyXEL Communications USG210 - What Could Go Wrong

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What Could Go Wrong?
If you see below [info] or [error] log message, please check ZyWALL/USG Phase
1 Settings. Both ZyWALL/USG at the HQ and Branch sites must use the same
Pre-Shared Key, Encryption, Authentication method, DH key group and ID Type
to establish the IKE SA.
MONITOR > Log
If you see that Phase 1 IKE SA process done but still get below [info] log message,
please check ZyWALL/USG Phase 2 Settings. Both ZyWALL/USG at the HQ and
Branch sites must use the same Protocol, Encapsulation, Encryption,
Authentication method and PFS to establish the IKE SA.
MONITOR > Log