Proxy Question

I have a more of an abstract question as to proxy functionality. Can you do the following: bob@bob.com password test bob.com -> proxy to localhost bob@bob.com - reply Access Deny This would be the norm for that realm, just deny everyone. Except for bob's boss: boss@bob.com password gooduser bob.com -> proxy to actual bob.com external AAA server. I hope this isn't a complete mess of a question. David