FYI - in our lab environment we were trying to validate the built-in NetScaler agent could activate directly against LAS without requiring the full NetScaler agent. Turns out it can on a 'normal' BSD based NetScaler build, we couldn't get it working initially but our lab is Nutanix and we were using the Nutanix AHV specific build which seems to be based on the Linux BLX build. That doesn't work, but the generic KVM (BSD based) build does. YMMV....