Ip from the Mac Address

Hi Guys,

I am looking for a way to snif the ip address of a network camera. I have its Mac address. The camera is on the network and i can access it from any browser, just by placing the ip address in the browser. Now i have written some code to capture and stuff from the camera. But in my code i always need to place the ip of the camera which i had to set with an app which came with the camera. Now what i want to do is give the Mac address and it woudl give me the ip address that the camera is presently holding.

thanks boys/girls
maldini1010