On Thu, 8 Jan 2004, Tim Bernhardson wrote:

> The IP Address of the PC that the user is logged onto is stored in the
> LDAP DB (if you run an LDAP Query on a logged in user, you should see a
> field called networkAddress. With a little research, you could probably
> write a helper(or tweak the current ldap one) to use this information
> for authentication...

If you have this, then it is almost trivial to write an external_acl
helper that will return the username to Squid for access and logging