Now that I've had a chance to muse about it ...
My sense of the situation – rightly or wrongly – is that a dynamic IP connection is actually static for the duration of the session, but the next session would have another IP address assigned. At least that's the way my ISP works and rotates through a couple dozen IP addresses.
Once a cookie gets set (and isn't deleted after a session), it's available at the next session. So if it's a tracking cookie, it's irrelevant whether the ISP provides static (permanently assigned) or dynamic IP addresses – the browsing history can be tracked.
May one of the resident wizards confirm my musings or disabuse me of them, in whole or in part.
