Today I needed to find a diagram of the traffic flow for a split-tunnel VPN. Nothing fancy, just a real simple user-facing diagram to form part of an article.
And friends, there was nothing. Nothing at all. I found proper technical ones from Cisco Meraki; fancy Office365 ones, depicting an ExpressRoute to O365 and tunnelling everything else through the VPN; and another Office365 tunnel with ExpressRoute and a split-tunnel for the rest of the traffic.
Pretty much the closest I came to my needs was this atrocity, via http://blog.soundtraining.net/2013/03/how-to-configure-split-tunneling-on.html:
So I went over to https://www.draw.io and whipped up something a bit prettier. This isn't marvelous, but it's way better than I could find anywhere else:
In retrospect, I could have done better - I really should have had the corporate tunnel going through the cloud of the internet. However this works for ne.