Linksys WAG54GP2 manual Configuring the Gateway Security Tab

Wireless-G ADSL Gateway with 2 Phone Ports

Group. There are two Diffie-Hellman Groups to choose from: 768-bit and 1024-bit. Diffie-Hellman refers to a cryptographic technique that uses public and private keys for encryption and decryption.

Key Life Time. The number in the Key Lifetime field, shows the amount of seconds the key will be used until a re- key negotiation is completed.

Other Setting

•NAT Traversal.

•NetBIOS broadcast. Check the box next to NetBIOS broadcast to enable NetBIOS traffic to pass through the VPN tunnel.

•Anti-replay. Check the box next to Anti-replay to enable the Anti-replay protection. This feature keeps track of sequence numbers as packets arrive, ensuring security at the IP packet-level.

•Keep-Alive. If you select this option, the Gateway will periodically check your Internet connection. If you are disconnected, then the Gateway will automatically re-establish your connection.

•Check this box to block unauthorized IP addresses. Enter in the field to specify how many times IKE must fail before blocking that unauthorized IP address. Enter the length of time that you specify (in seconds) in the field.

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. For further help on this tab, click the Help button.

Chapter 4: Configuring the Gateway 37

The Security Tab