System.Net.NetworkInformation.Tests.NetworkInterfaceBasicTest.BasicTest_StaticIPv6LoopbackIndex_MatchesLoopbackNetworkInterface C# (CSharp) Method

        public void BasicTest_StaticIPv6LoopbackIndex_MatchesLoopbackNetworkInterface()
        {
            Assert.True(Capability.IPv6Support());

            _log.WriteLine("Loopback IPv6 index: " + NetworkInterface.IPv6LoopbackInterfaceIndex);

            foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces())
            {
                foreach (UnicastIPAddressInformation unicast in nic.GetIPProperties().UnicastAddresses)
                {
                    if (unicast.Address.Equals(IPAddress.IPv6Loopback))
                    {
                        Assert.Equal<int>(
                            nic.GetIPProperties().GetIPv6Properties().Index,
                            NetworkInterface.IPv6LoopbackInterfaceIndex);

                        return; // Only check IPv6 loopback.
                    }
                }
            }
        }