User`s guide

AT&T Global Network Client for Windows Administrator’s Guide
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When this checkbox is checked, the installation program will:
• Create a shortcut to the AT&T Global Network Client executable in the All Users Startup folder.
• Enable the Minimize main window to system tray checkbox in the When this program starts
section of the Preferences tab of Login Properties.
• Enable the Minimize main window to system tray instead of taskbar checkbox in the After
connecting section of the Preferences tab of Login Properties.
Default Persistent Connection preferences can also be enabled by the Customer Account Administrator
through customization. See the chapter on Customizations for more information on public properties of
the AT&T Global Network Client.
VPN Mobility
When enabled, VPN Mobility attempts to maintain your VPN connection regardless of transitions in
underlying network connectivity. VPN Mobility will not renegotiate a new VPN tunnel, but rather attempt
to maintain an existing tunnel.
One example of the VPN Mobility advantage is a user with an active AT&T Global Network Client
connection who is using a wired Ethernet network. The user unplugs his or her Ethernet cable to connect
to the nearest Wi-Fi Hotspot Directory. The VPN tunnel will remain available in a suspended state on the
VPN Server for a specified duration. VPN Mobility will automatically attempt to move the tunnel to the
new network once the user associates to the Wi-Fi hotspot, without additional interaction from the user.
Most applications will be unaware of the transition of the tunnel
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.
Unlike Persistent Connections, VPN Mobility attempts to maintain the same VPN connection, if it is
unsuccessful, Persistent Connections must also be enabled for a new VPN connection to be established.
VPN Mobility does not require the Save Password option to be enabled.
Limitations
This feature is supported using AT&T propriety design; therefore the following limitations are required:
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Technology and applications dependent on TCP timeouts will not support the transition of the tunnel if the TCP timeout has
expired before the tunnel was reestablished.