如何确定我的计算机正在使用哪个网络适配器？

Question

I am using Pcat.Net. How do I determine which network adapter my computer is using C#, .Net, Pcat.net? GetMacAddress() extension method returns just the mac address of the network adapter, LivePacketDevice.AllLocalMachine also does not return information that can identify if the network adapter is being used by my computer.

Answer 1

You can try using NetworkInterface.GetAllNetworkInterfaces Method. You can get more details from below link:

https://msdn.microsoft.com/en-us/library/system.net.networkinformation.networkinterface.getallnetworkinterfaces(v=vs.110).aspx

Answer 2

I used the following code to determine if my computer was connected to the internet.

var networkInterfaces = NetworkInterface.GetAllNetworkInterfaces();
var connectedNetworkInterfaces = networkInterfaces.Where(
counter=> counter.OperationalStatus == OperationalStatus.Up && 
(counter.NetworkInterfaceType != NetworkInterfaceType.Loopback || counter.NetworkInterfaceType != NetworkInterfaceType.Tunnel));
if(connectedNetworkInterfaces.Count() <1)
{
    throw new Exception("The computer does not seem to be connected to the internet.");
}
var connectedNetworkInterface = connectedNetworkInterfaces.First();