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If you are asking about heatmaps like these (Heatmaps, set actions, new dashboard formatting, and more—now available in Tableau 2018.3 | Tableau Software ) - there isn't a way to make them directly in Tableau 8.2. That is functionality (the 'Density Mark Type') that was added in Tableau 2018.3
Native support for spatial file types was introduced in Tableau 10.2, so even if you generate similar visualizations externally (using Python, a GIS, etc.) you would still need to do some work to bring the spatial data into Tableau with older versions like 8.2.
If you are asking about creating choropleth maps (filled polygons based on a geocoding polygon that we support like countries), this would be possible in 8.2 if you can assign a geographic location to your IP addresses (e.g., country and/or state of origin) you could use the built in geocoding to generate the map (Get Started Mapping with Tableau - Tableau or Format Geographic Fields in Tableau - Tableau might help).
Edit: This might be helpful for assigning geographic location to IP addresses (https://www.ipinfodb.com/free-database )
I am pretty sure he is using Oracle 8.2.