Visual C # How to differentiate physical, virtual, and wireless network interfaces

Using system; <br/> using system. collections. generic; <br/> using system. text; <br/> using system. net; <br/> using system. net. networkinformation; <br/> using system. net. sockets; <br/> using Microsoft. win32; <br/> namespace consoledemo <br/>{< br/> /// <summary> <br/> // Title: distinguish between local, virtual, and wireless network cards <br/> // Author: X. x.y <br/> // Date: 2009-08-03 <br/> // description: test Environment vs2008 + XP <br/> /// </Summary> <br/> class Program <br />{< Br/> static void main (string [] ARGs) <br/>{< br/> shownetworkinterfacemessage (); <br/>}< br/> /// <summary> <br/> // display the details of each Nic on the local machine <br/> /// </Summary> <br/> Public static void shownetworkinterfacemessage () <br/> {<br/> networkinterface [] fnetworkinterfaces = networkinterface. getallnetworkinterfaces (); <br/> foreach (networkinterface adapter in fnetworkinterfaces) <br/>{< br/> # region" Nic type "<br/> string fcardtype =" unknown nic "; <br/> string fregistrykey = "system // CurrentControlSet // control // network // {4d36e972-e325-11ce-bfc1-08002be10318} //" + adapter. ID + "// connection"; <br/> registrykey rk = registry. localmachine. opensubkey (fregistrykey, false); <br/> If (rk! = NULL) <br/>{< br/> // differentiate pnpinstanceid <br/> // It is common If PCI is the real network card of the Local Machine. <br/> // mediasubtype is 01 nic, 02 is a wireless network card. <Br/> string fpnpinstanceid = rk. getvalue ("pnpinstanceid ",""). tostring (); <br/> int fmediasubtype = convert. toint32 (rk. getvalue ("mediasubtype", 0); <br/> If (fpnpinstanceid. length> 3 & <br/> fpnpinstanceid. substring (0, 3) = "PCI") <br/> fcardtype = "physical nic"; <br/> else if (fmediasubtype = 1) <br/> fcardtype = "virtual nic"; <br/> else if (fmediasubtype = 2) <br/> fcardtype = "wireless nic "; <br/>}< br/> # E Ndregion <br/> # region "Nic information" <br/> console. writeline ("-----------------------------------------------------------"); <br/> console. writeline ("--" + fcardtype); <br/> console. writeline ("-----------------------------------------------------------"); <br/> console. writeline ("ID ..................: {0} ", adapter. ID); // obtain the network adapter identifier <br/> console. writeline ("name ................: {0} ", adapter. na Me); // obtain the name of the network adapter <br/> console. writeline ("description .........: {0} ", adapter. description); // obtain the interface description <br/> console. writeline ("interface type ......: {0} ", adapter. networkinterfacetype); // obtain the interface type <br/> console. writeline ("is receive only ......: {0} ", adapter. isreceiveonly); // obtain the Boolean value, which indicates whether the network interface is set to receive only data packets. <Br/> console. writeline ("Multicast ............: {0} ", adapter. supportsmulticast); // gets a Boolean value that indicates whether to enable a network interface to receive multicast packets. <Br/> console. writeline ("speed ...............: {0} ", adapter. speed); // speed of the network interface <br/> console. writeline ("physical address ....: {0} ", adapter. getphysicaladdress (). tostring (); // MAC address <br/> ipinterfaceproperties fipinterfaceproperties = adapter. getipproperties (); <br/> unicastipaddressinformationcollection = fipinterfaceproperties. unicastaddresses; <br/> foreach (unicastipaddressinformation in unicastipaddressinformationcollection) <br/>{< br/> If (unicastipaddressinformation. address. addressfamily = addressfamily. interNetwork) <br/> console. writeline ("IP address ..........: {0} ", unicastipaddressinformation. address); // ip address <br/>}< br/> console. writeline (); <br/># endregion <br/>}< br/> console. readkey (); <br/>}< br/>}