iRule for knowing the user

Can a LTM “know” – which user a request is coming from? It should know because it is an Application Level Proxy.

 

 

Can this user information be captured? Based on the user information can an AD group attribute be retrieved? And based on the group retrieved – can a load balancing decision be taken to redirect the user to a higher performance pool – compared to another group that gets redirected to a regular pool?