you just have to access the GUI of your rtr then go to MAC filtering tab, there you can change it. there is also a site where you can have different GUIs for different type or brand of your rtr,...
The Router only has one M.A.C Address and One IP Address But, the Router can have many Connections ( Devices using the network ) That may shoe up as their IP Addresses. But the Router only Has One IP...
99% of the time, yes. There is the ability on a network adapter to over-ride the mac-address that comes with it, but very rarely is that feature ever used.fm