When prompted for a password, enter a new password. This will be the management password for the certificate.
A new file named "server.pfx" will be created.
Login to the SonicWall management GUI.
Navigate to the System > Certificates page.
Click on the Import button.
Select the radio-button under Import a local end-user certificate with private key from a PKCS#12 (.p12 or .pfx) encoded file.
Enter a name for the certificate.
Enter the password for the certificate, if any.
Click on the Browse button and select "server.pfx".
Click on the Import button. The certificate will be imported with Pending under Validated
Import the CA certificate to validate the certificate.
Your certificate has been installed in the SonicWall. It could be used for SonicWall web management and UTM-SSL VPN. It is recommended that you import the root and intermediate certificates into your browser to avoid browser errors.