Cisco Systems OL-5490-01 Manuale Utente

When this parameter is disabled, all traffic from your client system goes through the IPSec 
connection to the secure gateway.

If the local LAN you are using is not secure, you should not enable local LAN access. For example, do 
not enable this feature when you are using a local LAN in a hotel or airport. 

To enable this feature, check the Allow Local LAN Access check box on the VPN Client. You must also 
enable this feature on the VPN device you are connecting to.

The VPN Client uses a keepalive mechanism called Dead Peer Detection (DPD) to check the availability 
of the VPN device on the other side of an IPSec tunnel. If the network is unusually busy or unreliable, 
you may need to increase the number of seconds to wait before the VPN Client decides that the peer is 
no longer active. The default number of seconds to wait before terminating a connection is 90 seconds. 
The minimum number of seconds you can configure is 30 seconds and the maximum is 480 seconds. 

To adjust the setting, enter the number of seconds in the Peer response timeout field.

The VPN Client continues to send DPD requests every 5 seconds, until it reaches the number of seconds 
specified by the Peer response timeout value.

The private network you are connecting to might include one or more backup VPN devices (servers) to 
use if the primary server is not available. The list of available backup servers is pushed to the VPN Client 
when the connection is established, or you can add a backup server to the list manually.

The list of existing backup servers is found on the Backup Servers tab for each connection entry. Your 
network administrator can provide information regarding backup servers.

To use backup servers, you must enable this parameter.

To enable backup servers:

Open the VPN Client application.

Select a connection entry.

Click Modify at the top of the VPN Client window. The VPN Client Properties dialog box appears. 

Click the Backup Servers tab (