IPv4InterfaceProperties::IsAutomaticPrivateAddressingEnabled Property
.NET Framework (current version)
Gets a Boolean value that indicates whether this interface has automatic private IP addressing (APIPA) enabled.
Assembly: System (in System.dll)
public: property bool IsAutomaticPrivateAddressingEnabled { virtual bool get() abstract; }
Automatic private IP addressing allows computers that do not have access to a Dynamic Host Configuration Protocol (DHCP) server to be automatically assigned an IP address that does not conflict with public addresses. These addresses are in the range 169.254.0.0 to 169.254.255.255.
The following code example gets an IPv4InterfaceProperties object and displays its data.
void DisplayIPv4NetworkInterfaces() { array<NetworkInterface^>^nics = NetworkInterface::GetAllNetworkInterfaces(); IPGlobalProperties ^ properties = IPGlobalProperties::GetIPGlobalProperties(); Console::WriteLine( "IPv4 interface information for {0}.{1}", properties->HostName, properties->DomainName ); System::Collections::IEnumerator^ myEnum23 = nics->GetEnumerator(); while ( myEnum23->MoveNext() ) { NetworkInterface ^ adapter = safe_cast<NetworkInterface ^>(myEnum23->Current); // Only display informatin for interfaces that support IPv4. if ( adapter->Supports( NetworkInterfaceComponent::IPv4 ) == false ) { continue; } Console::WriteLine(); Console::WriteLine( adapter->Description ); // Underline the description. Console::WriteLine( String::Empty->PadLeft( adapter->Description->Length, '=' ) ); IPInterfaceProperties ^ adapterProperties = adapter->GetIPProperties(); // Try to get the IPv4 interface properties. IPv4InterfaceProperties ^ p = adapterProperties->GetIPv4Properties(); if ( !p ) { Console::WriteLine( "No IPv4 information is available for this interface." ); continue; } // Display the IPv4 specific data. Console::WriteLine( " Index ............................. : {0}", p->Index ); Console::WriteLine( " MTU ............................... : {0}", p->Mtu ); Console::WriteLine( " APIPA active....................... : {0}", p->IsAutomaticPrivateAddressingActive ); Console::WriteLine( " APIPA enabled...................... : {0}", p->IsAutomaticPrivateAddressingEnabled ); Console::WriteLine( " Forwarding enabled................. : {0}", p->IsForwardingEnabled ); Console::WriteLine( " Uses WINS ......................... : {0}", p->UsesWins ); } }
.NET Framework
Available since 2.0
Available since 2.0
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