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I am encountering an issue while using the SystemConfiguration framework to detect IPv4 address changes and active interfaces on macOS. Specifically, I'm facing difficulties when the interface switches from one network to another. When connected to a network with a Captive Portal enabled, I'm unable to retrieve the active interface using the stored key State:/Network/Global/IPv4. The output I receive is: No such key However, when I attempt to retrieve interface information using scutil --nwi, the output is as follows: IPv4 network interface information No IPv4 states found REACH : flags 0x00000000 (Not Reachable) IPv6 network interface information No IPv6 states found REACH : flags 0x00000000 (Not Reachable) Network interfaces: en0 Despite this output, the interface en0 is active and has a valid IPv4 address: when checking through ifconfig: en0:flags=8b63<UP,BROADCAST,SMART,RUNNING,PROMISC,ALLMULTI,SIMPLEX,MULTICAST> mtu 1500 options=6460<TSO4,TSO6,CHANNEL_IO,PARTIAL_CSUM,ZEROINVERT_CSUM> ether bc:d0:74:07:2a:33 inet6 fe80::412:ec:40df:4211%en0 prefixlen 64 secured scopeid 0x12 inet 10.42.0.5 netmask 0xffffff00 broadcast 10.42.0.255 nd6 options=201<PERFORMNUD,DAD> media: autoselect status: active It's evident that the interface is active and has a valid IPv4 address, but the retrieval methods using SystemConfiguration framework are not providing the expected output. I'm seeking assistance in resolving this discrepancy and accurately detecting active interfaces on macOS. Any insights or suggestions would be greatly appreciated. Thank you.

Hi Team, I have been working on an application that includes a Network Extension. I wanted to disable it if a captive portal is detected over the network. I have tried different approaches to detect it, including the standard approach outlined in the following document: https://datatracker.ietf.org/doc/html/draft-ietf-capport-api, using the URL https://captive.apple.com/hotspot-detect.html. However, none of these methods seem to be working. Additionally, the kSCNetworkReachabilityFlagsConnectionRequired flag is not being flagged when under a captive network. Could you please assist with this issue? Thank you.