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Thursday, October 1, 2009

System.Net.NetworkInformation...

An old post from my lost blog.

My brother was asking for help on how to get the information from network interface so that it can be use to monitor the network activity. I did some googling and I've found this piece of code. Simple enough but can be very useful if we expand it further.
    private static void GetNetworkInfo()
    {
        NetworkInterface[] interfaces = NetworkInterface.GetAllNetworkInterfaces();

        if (NetworkInterface.GetIsNetworkAvailable())
        {
            foreach (NetworkInterface iface in interfaces)
            {
                if (iface.OperationalStatus == OperationalStatus.Up && iface.NetworkInterfaceType != NetworkInterfaceType.Loopback)
                {
                    IPv4InterfaceStatistics stats = iface.GetIPv4Statistics();

                    long newsentbytes = stats.BytesSent;
                    long newreceivedbytes = stats.BytesReceived;

                    long sentbytes = newsentbytes - (oldsentbytes == 0 ? newsentbytes : oldsentbytes);
                    long receivedbytes = newreceivedbytes - (oldreceivedbytes == 0 ? newreceivedbytes : oldreceivedbytes);

                    Console.WriteLine("Bytes sent: {0}", sentbytes.ToString());
                    Console.WriteLine("Bytes received: {0}", receivedbytes.ToString());

                    oldsentbytes = newsentbytes;
                    oldreceivedbytes = newreceivedbytes;
                }
            }
        }
    }

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