Authentication in VPN

To protect data via encryption, a VPN must ensure that only authorized users can access the private network. You must use either a preshared key on both VPN gateways or RSA X.509 security certificates.

The following topics provide instructions on configuring authentication in VPN:

• IPsec VPN authenticating a remote FortiGate peer with a pre-shared key
• IPsec VPN authenticating a remote FortiGate peer with a certificate