Sharepoint 2007 web analytics

I believe it is Big-IP...they tell me the device is about five years old...has Big-IP been around that long? If so, has that config setting you mentioned been around equally as long? I'm sorry I don't have more info but I literally started this job two days ago; when I heard that they can't track web analytics because all they see is one IP, I thought that doesn't make sense...there must be a solution...thanks for your quick response! I can obtain more detailed info if needed...