MPPE for PPTP tunnels

The encryption protocol MPPE (Microsoft Point-To-Point Encryption) secures data transmission over PPP and VPN connections with key lengths of up to 128 bit.

MPPE uses the "stateless mode" for encryption to ensure that both communication partners are synchronized. In this mode, the session key changes with each transmitted data packet. The two stations also synchronize their encryption tables (where the keys are stored for data encryption) each time.

VPN-capable devices use MPPE to encrypt data transfer by PPTP tunnel.

In LANconfig you find this setting under Communication > Remote sites > PPTP > PPTP list.

If you have enabled the MPPE encryption protocol, connections to clients are established only under the following conditions:

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