PhysicalAddress Class

Definition

Namespace:

System.Net.NetworkInformation

Assembly:

System.Net.NetworkInformation.dll

Source:

PhysicalAddress.cs

Provides the Media Access Control (MAC) address for a network interface (adapter).

public ref class PhysicalAddress

public class PhysicalAddress

type PhysicalAddress = class

Public Class PhysicalAddress

Inheritance

Object

PhysicalAddress

Examples

The following code example displays the physical addresses of all interfaces on the local computer.

void ShowNetworkInterfaces()
{
   IPGlobalProperties^ computerProperties = IPGlobalProperties::GetIPGlobalProperties();
   array<NetworkInterface^>^nics = NetworkInterface::GetAllNetworkInterfaces();
   Console::WriteLine( L"Interface information for {0}.{1}     ", computerProperties->HostName, computerProperties->DomainName );
   if ( nics == nullptr || nics->Length < 1 )
   {
      Console::WriteLine( L"  No network interfaces found." );
      return;
   }

   Console::WriteLine( L"  Number of interfaces .................... : {0}", (nics->Length).ToString() );
   IEnumerator^ myEnum1 = nics->GetEnumerator();
   while ( myEnum1->MoveNext() )
   {
      NetworkInterface^ adapter = safe_cast<NetworkInterface^>(myEnum1->Current);
      IPInterfaceProperties^ properties = adapter->GetIPProperties();
      Console::WriteLine();
      Console::WriteLine( adapter->Description );
      Console::WriteLine( String::Empty->PadLeft( adapter->Description->Length, '=' ) );
      Console::WriteLine( L"  Interface type .......................... : {0}", adapter->NetworkInterfaceType );
      Console::Write( L"  Physical address ........................ : " );
      PhysicalAddress^ address = adapter->GetPhysicalAddress();
      array<Byte>^bytes = address->GetAddressBytes();
      for ( int i = 0; i < bytes->Length; i++ )
      {
         
         // Display the physical address in hexadecimal.
         Console::Write( L"{0}", bytes[ i ].ToString( L"X2" ) );
         
         // Insert a hyphen after each byte, unless we are at the end of the 
         // address.
         if ( i != bytes->Length - 1 )
         {
            Console::Write( L"-" );
         }

      }
      Console::WriteLine();
   }
}

public static void ShowNetworkInterfaces()
{
    IPGlobalProperties computerProperties = IPGlobalProperties.GetIPGlobalProperties();
    NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
    Console.WriteLine("Interface information for {0}.{1}     ",
            computerProperties.HostName, computerProperties.DomainName);
    if (nics == null || nics.Length < 1)
    {
        Console.WriteLine("  No network interfaces found.");
        return;
    }

    Console.WriteLine("  Number of interfaces .................... : {0}", nics.Length);
    foreach (NetworkInterface adapter in nics)
    {
        IPInterfaceProperties properties = adapter.GetIPProperties(); //  .GetIPInterfaceProperties();
        Console.WriteLine();
        Console.WriteLine(adapter.Description);
        Console.WriteLine(String.Empty.PadLeft(adapter.Description.Length, '='));
        Console.WriteLine("  Interface type .......................... : {0}", adapter.NetworkInterfaceType);
        Console.Write("  Physical address ........................ : ");
        PhysicalAddress address = adapter.GetPhysicalAddress();
        byte[] bytes = address.GetAddressBytes();
        for (int i = 0; i < bytes.Length; i++)
        {
            // Display the physical address in hexadecimal.
            Console.Write("{0}", bytes[i].ToString("X2"));
            // Insert a hyphen after each byte, unless we're at the end of the address.
            if (i != bytes.Length - 1)
            {
                Console.Write("-");
            }
        }
        Console.WriteLine();
    }
}

Remarks

The MAC address, or physical address, is a hardware address that uniquely identifies each node, such as a computer or printer, on a network.

Instances of this class are returned by the NetworkInterface.GetPhysicalAddress method.

Constructors

PhysicalAddress(Byte[])

Initializes a new instance of the PhysicalAddress class.

Fields

None	Returns a new PhysicalAddress instance with a zero length address. This field is read-only.

Methods

Equals(Object)	Compares two PhysicalAddress instances.
GetAddressBytes()	Returns the address of the current instance.
GetHashCode()	Returns the hash value of a physical address.
GetType()	Gets the Type of the current instance. (Inherited from Object)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
Parse(ReadOnlySpan<Char>)	Parses the specified span and stores its contents as the address bytes of the PhysicalAddress returned by this method.
Parse(String)	Parses the specified String and stores its contents as the address bytes of the PhysicalAddress returned by this method.
ToString()	Returns the String representation of the address of this instance.
TryParse(ReadOnlySpan<Char>, PhysicalAddress)	Tries to convert the span representation of a hardware address to a PhysicalAddress instance. A return value indicates whether the conversion succeeded.
TryParse(String, PhysicalAddress)	Tries to convert the string representation of a hardware address to a PhysicalAddress instance. A return value indicates whether the conversion succeeded.