SMC Networks SMC Barricade Plus SMCBR18VPN - Manual (Page 52)

Step 11: The “Required Security Properties” window opens. Select “Negotiate security” and then
check the “Session key perfect forward security (PFS)”.
Step 12: Click the “Edit” button to select a security method. The “New Security Method” window
will now appear.
Step 13: Select “Custom” and click “OK”.