Why can't we select a certificate in VPN Phase 1 for authentication?

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Zyxel_Cooldia
Zyxel_Cooldia Posts: 1,450  Zyxel Employee
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edited February 27 in VPN

Question:
I can import a third-party certificate to FLEX/ATP without any errors.
However, I am unable to select this certificate for VPN phase 1 authentication. What could be the issue?

Answer:
ZLD does not support ECDSA certificates in the VPN module, so we cannot select them in Phase 1. Please sign the certificate again with RSA.

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