Waveshare WS-431E - Openvpn

WS-431E 4G Router
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includes encryption mode, integrity scheme and DH exchange algorithm in IKE stage; IKE life
time: set the life cycle of IKE, in seconds, the default is 28800;
 Authentication type: currently, the authentication mode of pre-shared key is supported;
 ESP encryption algorithm: the second stage includes the encryption mode and integrity
scheme;
 ESP life time: set the ESP life cycle in seconds, and the default value is 3600;
 Perfect Forward Secrecy (PFS) for Session Key Encryption: There are four options: disabled,
DH1, DH2 and DH5. This setting should be consistent between this end and the peer.
 Enable DPD Detection: What action should be taken when the DPD declares the peer as
dead.
 DPD detection period: Set the time interval of connection detection (DPD);
 DPD timeout: Set the connection detection (DPD) timeout;
 DPD operation: Set the operation of connection detection. Including restart, dismantle,
keep, none, restart by default;
 IPSec Connection Successful: After successfully establishing an IPSec connection with the
remote endpoint, navigate to the VPN-to-VPN Status section to check the connection status.
4.7.4. OPENVPN
Enable OpenVPN to build VPN, and you can choose TUN (routing mode) or TAP (bridge mode)
internally: