Apple’s Private Relay can cause the system to ignore firewall rules

Re:Apple’s Private Relay can cause the system to ignore fire... by olliej on Monday April 25, 2022 @01:33PM (#31158107)

I’m unsure how a VPN and private relay would be expected to operate concurrently?

What happens if you enable two VPNs concurrently today?

Private relay and VPNs serve significantly different purposes - private relay is very clearly http[s] focused to the extent that I recall it doesn’t cover most traffic?

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Re:Apple’s Private Relay can cause the system to ignore fire... by tedmiston on Monday April 25, 2022 @05:54PM (#31161213)

> What happens if you enable two VPNs concurrently today?

I don't believe it's possible to have more than one VPN configuration be enabled simultaneously.

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Re:Apple’s Private Relay can cause the system to ignore fire... by caymanjim on Monday April 25, 2022 @07:29PM (#31162198)

You can run as many VPNs as you want. Only one of them can own the default route (and even this isn't true if I'm being pedantic). I regularly run at least two at a time in MacOS, Linux, and Windows.

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Re:Apple’s Private Relay can cause the system to ignore fire... by ec109685 on Monday April 25, 2022 @03:15PM (#31159351)

Private Relay turns itself off when a VPN is enabled.

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Re:Apple’s Private Relay can cause the system to ignore fire... by tedmiston on Monday April 25, 2022 @05:52PM (#31161197)

> Private Relay turns itself off when a VPN is enabled.

I tested this on iOS and Private Relay does not turn itself off when a VPN is enabled.

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Re:Apple’s Private Relay can cause the system to ignore fire... by olliej on Monday April 25, 2022 @08:52PM (#31162745)

Thanks!

If the apple documentation says it does, that would seem like an obvious bug, but I'm curious whether the apple docs do say that, or there's a general assumption of that being the case?

Oh, as I think of it, did you test the UI switch position or network traffic? I could believe the following behaviors:

* UI switch turns off, private relay continues to carry traffic

* UI switch stays on, private relay continues to carry traffic

* UI switch stays on, private relay does actually turn off

All seem like entirely plausible bug behaviors, and it would be nice to know which it was (UI off + iCPR on would seem to most overtly be a bug)

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Re:Apple’s Private Relay can cause the system to ignore fire... by lxgr on Monday April 25, 2022 @07:40PM (#31162279)

It does for me as well.

Does your VPN possibly not offer a default route?

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