Arduino Ethernet DNS

Hi... I have been able to get my arduino to communicate to my laptop directly... However, I can not get it to access the Internet... My laptop internet connections require have a DNS entry (I'm using static IP)...

I'm assuming that that is why the arduino won't connect... Can I add the DNS entries for the arduino? Where do I do it?

I'm using a 328 chip with a duemilinove and adafruit shield.