Squid-authentification: auth+ip

Hello,
I'm looking for some advice...
I've read through the FAQ and release notes, but I haven't found way to
make an acl based both on user/pass and on ip/mask.
What I realy mean - suppose we have pool of 20 users, which we want to
limit to only one segment - the teaching class, so they won't be able to
browse from anywhere else.
So users "student1"..."student20" will be able to browse only from
10.0.0.x/24 .
I thought that hacking auth_ncsa would be easy, but then noticed that ip
of the client isn't sent together with the user/plain password.
So, in case there is no such method implemented in squid2-patch2, I'll
need to hack the code which sends the user/pass too.
Did anyone done something like this before, or perhaps is there some
information about it on the web?
Thank you very much for your attention,

--Roman Shterenzon, System Administrator
[ Xpert UNIX Systems Ltd., Bnei-Brak, Israel. Tel: +972-3-6181118 ]
Received on Sun Jan 10 1999 - 01:09:57 MST