Selected settings

VPN

Services ⇒ VPN
dd-wrt/applyuser.cgi

Option	Description
OpenVPN	Enable: usage as server.
Start Type	Start event of server. Recommendation: Wan Up. In few cases this do not work, then use System.
Config as	Daemon or Text: Only the text input fields of this site are used, but no other settings of this site.
Network	Possibility: 10.10.10.0
Netmask	Possibility: 255.255.255.0
Tunnel Protocol	Recommendation: UDP
Encryption Cipher	Recommendation: AES-256 CBC
Advanced Options	On Disable there are not visible the additional options. But the additional options are be considered regardless of this setting.
Public Server Cert	Content of server certificate file.
CA Cert	Content of file ca.crt.
Private Server Key	Content of server key file.
DH PEM	Content of Deffie Hellman file. Common name of file is dh.pem.
Additional Config	If Config As is set to Server or GUI then additional settings are to be set here. Otherwise all options are to be set here.

On press "Apply Settings", there will be created internally the following files: openvpn.conf, ca.crt, cert.pem, dh.pem.