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List:       wireguard
Subject:    Re: [wireguard-apple] [iOS] Changing network fails with includeAllNetworks (Kill Switch)
From:       Juraj Hilje <juraj.hilje () gmail ! com>
Date:       2021-10-19 12:22:37
Message-ID: FD3103A9-03E3-43E8-A398-D589D923B806 () gmail ! com
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Thanks for the follow-up!
I had the same result on my end, everything worked as expected on the iOS 15.1 Beta.

> On 19.10.2021., at 11:54, Andrej Mihajlov <and@mullvad.net> wrote:
> 
> Follow up on this. It looks like the VPN connection breaks on my iPad running \
> iPadOS 15 after changing DNS settings via WireGuardKit.  
> Tested on iPadOS 15.1 beta today and it seems to be stable.
> 
> > On 28 Sep 2021, at 13:03, Andrej Mihajlov <and@mullvad.net> wrote:
> > 
> > Hi,
> > 
> > I can confirm that it behaves correctly on iOS 15 (tested on iPhone 12) and iOS \
> > 15.1 beta (tested on iPhone 7). Tested by toggling cellular/wi-fi and airplane \
> > mode on both devices and network monitor seems to be functioning properly.  
> > I haven't tested this patch on iOS 14.8, but I had previously tested it on iOS \
> > 14.5 (IIRC) and it didn't work there, that's why this patch is scoped to iOS 15+. \
> >  I am running the "am/enable-include-all-networks" branch which has the following \
> > changeset: https://git.zx2c4.com/wireguard-apple/commit/?id=07bc66e7b181fb2068d457b31c1fdd05bdd2214a&id2=58e94f077329f6c7b96ec069243495d4e649fe36
> >  
> > Cheers,
> > Andrej
> > 
> > > On 22 Sep 2021, at 15:26, Juraj Hilje <juraj.hilje@gmail.com> wrote:
> > > 
> > > Hi Andrej,
> > > 
> > > I've tested on iOS/iPadOS 15.1 Beta, and it looks like the issue is fixed \
> > > there. Let me know if you can confirm the same on your end.
> > > 
> > > Cheers,
> > > Juraj H.
> > > 
> > > > On 22.09.2021., at 10:59, Andrej Mihajlov <and@mullvad.net> wrote:
> > > > 
> > > > Hi Juraj,
> > > > 
> > > > Installing iOS 15 right now. I am gonna test it today too. 
> > > > 
> > > > What stands out to me that, while you have multiple interfaces available, the \
> > > > network monitor still says that the network is unsatisfied. Very odd. 
> > > > Cheers,
> > > > Andrej
> > > > 
> > > > > On 22 Sep 2021, at 10:55, Juraj Hilje <juraj.hilje@gmail.com> wrote:
> > > > > 
> > > > > Hey Andrej, thanks for the response!
> > > > > 
> > > > > I've tested on iOS 14.8 and iOS 15.0 (public release), and even with the \
> > > > > patch (b244febfdf3069dd4e8db2d31f0368d5474d7616) i still have the same \
> > > > > issue on my end. 
> > > > > I will test the new iOS 15.1 Beta later today and let you know how it goes.
> > > > > 
> > > > > Juraj H.
> > > > > 
> > > > > > On 22.09.2021., at 10:08, Andrej Mihajlov <and@mullvad.net> wrote:
> > > > > > 
> > > > > > Have you tried on the most recent beta? I think it works over there, but \
> > > > > > requires some tweaks to the network monitor code in WireGuard. I had a \
> > > > > > patch somewhere here but haven't spent much time testing it: 
> > > > > > https://git.zx2c4.com/wireguard-apple/commit/?h=am/enable-include-all-networks&id=b244febfdf3069dd4e8db2d31f0368d5474d7616
> > > > > >  
> > > > > > Waiting for the final release of iOS 15.
> > > > > > 
> > > > > > > On 21 Sep 2021, at 12:55, Juraj Hilje <juraj.hilje@gmail.com> wrote:
> > > > > > > 
> > > > > > > If NETunnelProviderProtocol is configured with includeAllNetworks=true \
> > > > > > > (Kill Switch), when network change is detected the device connectivity \
> > > > > > > goes offline instead of routing VPN tunnel traffic through a new \
> > > > > > > network. 
> > > > > > > Here are some logs from the moment of this event:
> > > > > > > 2021-09-20 12:07:26.735453: [NET] Network change detected with \
> > > > > > > unsatisfied route and interface order [en0, utun4, pdp_ip0] 2021-09-20 \
> > > > > > > 12:07:26.736186: [NET] Connectivity offline, pausing backend. \
> > > > > > > 2021-09-20 12:07:26.736732: [NET] Device closing 2021-09-20 \
> > > > > > > 12:07:26.737503: [NET] Routine: TUN reader - stopped 2021-09-20 \
> > > > > > > 12:07:26.738970: [NET] Routine: event worker - stopped 2021-09-20 \
> > > > > > > 12:07:26.739613: [NET] Routine: receive incoming v4 - stopped \
> > > > > > > 2021-09-20 12:07:26.742070: [NET] Routine: receive incoming v6 - \
> > > > > > > stopped 2021-09-20 12:07:26.746712: [NET] peer(eN1f…Oymc) - Stopping
> > > > > > > 2021-09-20 12:07:26.751550: [NET] peer(eN1f…Oymc) - Routine: \
> > > > > > > sequential receiver - stopped 2021-09-20 12:07:26.751597: [NET] \
> > > > > > > peer(eN1f…Oymc) - Routine: sequential sender - stopped 2021-09-20 \
> > > > > > > 12:07:26.753433: [NET] Device closed 2021-09-20 12:07:26.754097: [NET] \
> > > > > > > Routine: decryption worker 5 - stopped 
> > > > > > > Tested on devices: iOS 14.8, iPadOS 15
> > > > > > > WireGuardKit: 79aeb0be0d0aa3f6c8bd24309aaa8dcf03216fb4
> > > > > > > 
> > > > > > > More info on includeAllNetworks option:
> > > > > > > https://developer.apple.com/documentation/networkextension/nevpnprotocol/3131931-includeallnetworks
> > > > > > >  
> > > > > > > Can someone confirm this issue or point to a possible workaround?
> > > > > > > Thanks!
> > > > > > > 
> > > > > > > Juraj H.
> > > > > > 
> > > > > 
> > > > 
> > > 
> > 
> 


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