Question : How to find the layout of a network when doing counsulting?

I do occasional counsulting and most often the clients know nothing about there network and don't even know what or where everything is. I have also had this problem in the past when starting a new job, trying to find the layout of the network and where everything is, IP addresses ect....Typically this is the hardest part is figuring out all this. Does anyone have any good advice or recommendations on how they do this? Is there a command that can be ran that will return alot of useful info? Or just a general way of doing this assuming no one can tell you?

Answer : How to find the layout of a network when doing counsulting?

There are many network scanner like "IP range scanners".