Start VPN Fail, need reinstall App

Question

Created Feb ’22

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My App use NEPacketTunnelProvider to start a VPN service for iOS device. And sometimes, after App Process call startTunnelWithOptions success, iOS system won't start the VPN process successfully. And it need to reinstall the IPA to make it work find again. After Recurrence problem and catch system log. We found this log

Feb 14 10:09:22 nesessionmanager[13722] <Notice>: NESMVPNSession[Primary Tunnel:SecureLink:CFA3ACD5-6A37-44DD-8BE9-DB3317285D03:(null)]: Re-setting policies because the installed apps changed Feb 14 10:09:22 nesessionmanager[13722] <Notice>: NESMVPNSession[Primary Tunnel:CDNetwork:B5F6D081-F37E-4A27-B7A7-596C4AA03118:(null)]: Resetting VPN On Demand Feb 14 10:09:22 nesessionmanager[13722] <Notice>: NESMVPNSession[Primary Tunnel:SecureLink:CFA3ACD5-6A37-44DD-8BE9-DB3317285D03:(null)]: Resetting VPN On Demand Feb 14 10:09:22 nesessionmanager[13722] <Notice>: Found 0 (0 active) registrations for com.CDNetworks.ESA.packettunnel (com.apple.networkextension.packet-tunnel) Feb 14 10:09:22 nesessionmanager[13722] <Notice>: Found 0 (0 active) registrations for com.wangsu.securelink.packettunnel (com.apple.networkextension.packet-tunnel) Feb 14 10:09:22 nesessionmanager[13722] <Notice>: NESMVPNSession[Primary Tunnel:CDNetwork:B5F6D081-F37E-4A27-B7A7-596C4AA03118:(null)]: Plugin is installed Feb 14 10:09:22 nehelper[11452] <Error>: Denying connection from nesessionmanager (13722) because it is missing the com.apple.private.network.socket-delegate entitlement Feb 14 10:09:22 nesessionmanager[13722] <Notice>: NESMVPNSession[Primary Tunnel:SecureLink:CFA3ACD5-6A37-44DD-8BE9-DB3317285D03:(null)]: Plugin is installed Feb 14 10:09:22 nesessionmanager(libsystem_networkextension.dylib)[13722] <Notice>: UUID cache generation changed from 351 to 353 Feb 14 10:09:22 nesessionmanager(libsystem_networkextension.dylib)[13722] <Notice>: UUID cache miss for com.apple.VoiceMemos Feb 14 10:09:22 nesessionmanager(libsystem_networkextension.dylib)[13722] <Notice>: UUID cache generation changed from 353 to 354 Feb 14 10:09:22 nesessionmanager(libsystem_networkextension.dylib)[13722] <Notice>: UUID cache miss for com.apple.Translate Feb 14 10:09:22 nehelper[11452] <Error>: Denying connection from nesessionmanager (13722) because it is missing the com.apple.private.network.socket-delegate entitlement

So could somebody tell me, what is com.apple.private.network.socket-delegate entitlement

and how to fix that.

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Answer 1

Systems Engineer OP

Apple

Feb ’22

So could somebody tell me, what is com.apple.private.network.socket-delegate entitlement and how to fix that

This is not an entitlement that you can add to your project. This looks like an internal log that is being generated due to a possible configuration issue. My recommendation would be to evaluate how NEPacketTunnelProvider is configured in your Xcode project against the container app. Also, make sure there are no other Enterprise VPNs running on the system at the same time.

Matt Eaton
DTS Engineering, CoreOS
meaton3@apple.com

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