:confused:
you may login to the web-based interface if you want to check the MAC address for TD-W8151.
how to login to the web-based for TD-W8151....
http://www.tp-link.com/en/article/?faqid=144

there you go!!!

Thanks for the reply.
Its a very rookie question Im asking here :D I have logged on to the web-based UI and had already checked the 'system log'.
But what Im trying to reach is list of all MAC addreses that the router has communicated so far (may be a extended history or some cache)