Cisco Systems Linksys WAG54GX2 Guide Utilisateur page 55

Wireless-G ADSL Gateway with SRX200
PFS. The status of the PFS (Perfect Forward Secrecy) feature will be displayed.
Group. There are three Diffie-Hellman Groups to choose from: 768-bit, 1024-bit, and 1536-bit. Diffie-Hellman
refers to a cryptographic technique that uses public and private keys for encryption and decryption.
Key Life Time. In the Key Lifetime field, you may optionally select to have the key expire at the end of a time
period of your choosing. Enter the number of seconds you'd like the key to be used until a re-key negotiation
between each endpoint is completed.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes.
When finished making your changes on this tab, click the Save Settings button to save these changes, or click
the Cancel Changes button to undo your changes. Click Help for more information.
Chapter 6: Configuring the Wireless-G ADSL Gateway with SRX200 48
The Security Tab