OPENVPN Client
Server IP/Name: IP address or domain name of OPENVPN server to connect to
Port: port that OPENVPN server is listening on
Tunnel Device: TUN----Router mode, TAP----Bridge mode
Tunnel Protocol: use UDP or TCP protocol for transport
Encryption Cipher: Blowfish CBC,AES-128 CBC,AES-192 CBC,AES-256
CBC,AES-512 CBC
Hash Algorithm: Hash algorithm provides a method of quick access to data,
including SHA1, SHA256, SHA512, MD5