Question

I want to retrieve the MAC Address with IP Address…

var nics = NetworkInterface.GetAllNetworkInterfaces()
    .Where(ipProp => ipProp.GetIPProperties().UnicastAddresses
                     .Where(ip => ip.Address.ToString().Equals("192.168.1.111"))
    );

I am getting an error:

“Cannot implicitly convert type ‘System.Collections.Generic.IEnumerable’ to ‘bool'”

How do I fix this?

Answer 1

NetworkInterface networkInterface = NetworkInterface.GetAllNetworkInterfaces().Where(ipProp => ipProp.GetIPProperties().UnicastAddresses.FirstOrDefault(ip => ip.Address.ToString().Equals("YOUR_IP")) != null).FirstOrDefault();
if (networkInterface != null)
{
    Console.WriteLine(networkInterface.GetPhysicalAddress());
}