remote client identification

[mitja]

Hi,
I have read a lot of posts on the web and got no answer. Is there any chance
of geting any unique client identification data (his IP-but not proxy IP or
router or NAT, his username, his computer name, anything) to know from where
is the user accesing my aspx page.

I have to get some identfication to know on which computer in my company is
user working.
It would be easy if thet would be just intranet (REMOTE_HOST ), but I have
some computers that are outside the intranet at the other part of the city,
accessing my .net application over the web?

thanks
Mitja