Also, I hate pie charts. There is (almost) never a good reason to use a pie chart. A stacked bar chart would be just as good, with IPv4 and IPv6 in 2 separate bars.

And the colors.
#fb290f (orange-red) is IPv4 in one chart and IPv6 in the other, this is confusing.
I would suggest using one color group for IPv4 and different shades of that color for the protocols inside it (light blue to dark blue), and another color group for IPv6 (light orange to brown)
And totally different colors in the first chart, because traffic direction is definitely not the same as protocol!

I hope you can do something with this constructive criticism. A reading suggestion: The Visual Display of Quantitative Information, by Edward Tufte.

:)