Using TC to throttle client's internet bandwidth not lan bandwidth [on hold]

Using TC to throttle client's internet bandwidth not lan bandwidth [on hold]

I want to throttle traffic in my network using tc. What I found if 'wlan0'
is from where my internet comes in to my Linux machine and 'eth0' to my
internal network.
I've so far found solution for limiting traffic for controlling my
connection with internal network. Like, applying rule in 'eth0' for
controlling internal network.(using this article
http://atmail.com/kb/2009/throttling-bandwidth/)
But what I need to do is to control over 'internal network going to
wlan0(internet)' so that Server (my computer) can communicate with client
in lan speed and clients can get the bandwidth they need. How to
accomplish this using tc ??