What is OpenVPN? - Best VPN for OpenVPN (TCP/UDP)

OpenVPN uses TLS to protect control channel packets. The 'data channel'. This is the channel over which the actual VPN traffic is sent. This channel is keyed with key material exchanged over the control channel. Both these channels are duplexed over a single TCP or UDP port.--tls-cipher controls the cipher used by the control channel. OpenVPN - DD-WRT Wiki TLS Cipher What encryption algorithm OpenVPN should use for encrypting its control channel. {disabled} [] LZO Compression Enables compression over VPN. This might speedup the connection. Must be the same value as on server. {adaptive} [comp-lzo yes/no/adaptive/disabled] NAT Enable network address translation on the client side of the connection. What cryptographic network services, protocols, ciphers OpenVPN. By default, OpenVPN tunnels are configured to disallow export ciphers, known weak ciphers (e.g. DES), and RSA key exchange (note: not RSA authentication), using the following cipher string: DEFAULT:!EXP:!LOW:!PSK:!SRP:!kRSA Otherwise the full range support by … OpenVPN with authorization, but without encryption

Encryption software - Wikipedia

By default OpenVPN Access Server used in the past the cipher BF-CBC. As of Access Server 2.5, AES-256-CBC cipher is used on new installations, and with upgrades from an older version will still use BF-CBC. This stands for BlowFish Cipher-Block Chain and is a secure method of continuously encrypting data in the OpenVPN tunnel.

Oct 03, 2018

TLS Cipher What encryption algorithm OpenVPN should use for encrypting its control channel. {disabled} [] LZO Compression Enables compression over VPN. This might speedup the connection. Must be the same value as on server. {adaptive} [comp-lzo yes/no/adaptive/disabled] NAT Enable network address translation on the client side of the connection.