Step 10: On the Properties screen, switch to the "Security" tab. (In Windows XP, switch to the
"Network" tab.) Choose "Layer 2 Tunneling Protocol with IPsec (L2TP/IPSec)" on the "Type of VPN"
drop-down list.
The following screen will appear. Click "Use preshared key for authentication" and input the pre-
shared key on the "Key" field.
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