I have set up a web server with a couple of asp pages. When a DMP browses a page the asp page identify it by its IP address.
Unfortunately it is not always possible on WANs due to firewalls.
I have then managed to write a cookie on each DMP to identify it. My ASP page can read that cookie and knows which DMP it is. The problem is that if for a reason I reboot the DMP, the cookie disappear (even though I wrote the cookie with a very long lifetime). I think that when I write the cookie it is stored on the cache of the DMP, and when I reboot the box the cache is cleared.
Does anyone knows a way around this? Or any other way to identify a DMP (other than using its IP) from an ASP page?