Netgear UTM25 – ProSECURE Unified Threat Management (UTM) Appliance User Manual

In the IPSec pane, click the Automation tab. 

Select the Automatically open this tunnel when USB stick is inserted check box.

If more than one tunnel is configured, make sure that, on the USB 
Mode Wizard 3/4 page, you selected which tunnel or tunnels to open. 
For more information, see 

(Optional) Insert a USB drive that contains a VPN configuration.

The tunnel opens automatically.

If you insert a USB drive without a VPN configuration, or if you do not 
insert a USB drive, the VPN Client starts in local mode and uses a VPN 
configuration that is available on the local disk.

The VPN Client can use X509 certificates from various sources:

PEM format file (also referred to as PEM certificate)

PKCS#12 format file (also referred to as P12 certificate)

Personal Certificate Store

USB token or smart card

The Certificate pane displays these certificate sources and lets you select a certificate for a 
particular tunnel. One certificate is bound to one tunnel. You can easily export the 
configuration to another computer.

Certificates can be stored on a USB token or smart card for which access is protected by a 
PIN code; the VPN Client uses these certificates dynamically while establishing a tunnel.