Idle VPN Tunnel
Typically, VPN tunnels carry work-related traffic. To protect sensitive data and access while a remote access user is away from the machine, make sure that idle tunnels are disconnected.
To configure tunnel idleness:
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                                                Close all SmartConsole windows. 
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                                                Connect with Database Tool (GuiDBEdit Tool) to the Security Management Server. 
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                                                In the upper left pane, go to the Global Properties > global_properties. 
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                                                In the upper right pane, select firewall_properties. 
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                                                Press CTRL+F (or go to the Search menu - Find) - paste disconnect_on_idle - click Find Next. 
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                                                In the lower pane, and these parameters under disconnect_on_idle: - 
                                                        do_not_check_idleness_on_icmp_packets
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                                                        do_not_check_idleness_on_these_services- Enter the port numbers for the services that you want to ignore when idleness is checked.
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                                                        enable_disconnect_on_idle- to enable the feature
- 
                                                        idle_timeout_in_minutes
 
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                                                Save the changes: go to the File menu - click Save All. 
- 
                                                Close the Database Tool (GuiDBEdit Tool). 
- 
                                                From the SmartConsole, install the policy on the Security Gateways. 
