Hotspotted traffic does not go through the VPN tunnel on iOS

Number:rdar://FB8257554 Date Originated:Aug 4, 2020
Status:Open Resolved:
Product: Product Version:
Classification: Reproducible:
The traffic hotspotted to an iOS device that is connected to a VPN does not go through the VPN tunnel. 
Here are the steps to reproduce:

- iPhone on iOS 13.5 is connected to a VPN and has hotspot enabled
- Connect a Mac to the iPhone's hotspot
- Check the Mac IP. The real iPhone's IP is seen by the mac. 
- I expect that the traffic hotspotted goes through the VPN tunnel

Is it technically possible to send the traffic coming from the hotspot connection to the VPN tunnel in iOS?


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