PPP Encryption

PPP supports encryption facilities to secure the data across the network connection. A wide variety of encryption methods may be negotiated, although typically only one method is used in each direction of the link.

This section allows you to select the encryption methods your gateway may use when negotiating with a PPTP server. Select all the methods if no information is available about the server's encryption methods.

Please note that PPP encryption can only be used with MS-CHAP or MS-CHAP-V2 authentication protocols.

Figure 5.97: PPP Encryption

Require Encryption

Select this check box to ensure that the PPP connection is encrypted.

Support Encryption (40 Bit Keys)

Select this check box if your peer supports 40 bit encryption keys.

Support Maximum Strength Encryption (128 Bit Keys)

Select this check box if your peer supports 128 bit encryption keys.