You have installed SecurePlatform R75 as Security Gateway operating system. As company requirements changed, you need the VTI features of R75. What should you do?

A.
Only IPSO 3.9 supports VTI feature, so you have to replace your Security Gateway with Nokia appliances.

B.
In SmartDashboard click on the OS drop down menu and choose SecurePlatform Pro. You have to reboot the Security Gateway in order for the change to take effect.

C.
Type pro enable on your Security Gateway and reboot it.

D.
You have to re-install your Security Gateway with SecurePlatform Pro R75, as SecurePlatform R75 does not support VTIs.