Duplicate IP clarification

Hello,

I had a quick question about duplicate IP visits. Are they counted on a per-link basis on a per-account basis?

For example, say I post three shortened links to my facebook account at one time. These links are all different and take the user to different addresses. Now, if one user clicks on all three links, do those clicks all show up as unique? Or do the second two clicks on separate links get a lower pay rate because that IP already utilized on of my links already, even though it was a completely different link from the other two?

Thanks for your assistance!