[2005] MAC Address -> IP Address

[gigemboy]

gigemboy, you can have multiple network adapters on 1 computer which is probably why the IP addresses are an array.

Yeah but it loops for all network interfaces. Each network interface has the property that is an array. You wont have 2 IP's for 1 network interface... as far as I know... unless maybe 1 will return the regular IP and loopback IP?

[Kasracer]

Yeah but it loops for all network interfaces. Each network interface has the property that is an array. You wont have 2 IP's for 1 network interface... as far as I know... unless maybe 1 will return the regular IP and loopback IP?

The loopback address is implimented in the device's drivers. It shouldn't count that as a second IP.

It's probably related to network cards like this one: http://www.newegg.com/Product/Produc...82E16833106217

[dynamic_sysop]

you don't really need to add references to the ManagementObject, you could always use a simple API call ( *** just as an alternative *** )
on your local network you can use the SendARP API, you can also use this for any network interfaces on your own machine.
here's a quick example i bunged together for you , it's based on a few C# examples floating about, i just modified it to work in VB.NET...

[COLOR=Blue]Private Declare[/COLOR] [COLOR=Blue]Function[/COLOR] inet_addr [COLOR=Blue]Lib[/COLOR] "ws2_32.dll" ([COLOR=Blue]ByVal[/COLOR] cp [COLOR=Blue]As String[/COLOR]) [COLOR=Blue]As[/COLOR] Int32
    [COLOR=Blue]Private Declare Function[/COLOR] SendARP [COLOR=Blue]Lib[/COLOR] "IPHLPAPI.dll" ([COLOR=Blue]ByVal[/COLOR] DestIP [COLOR=Blue]As Integer[/COLOR], [COLOR=Blue]ByVal[/COLOR] SrcIP [COLOR=Blue]As[/COLOR] Int32, [COLOR=Blue]ByVal[/COLOR] pMacAddr [COLOR=Blue]As Byte[/COLOR](), [COLOR=Blue]ByRef [/COLOR] PhyAddrLen [COLOR=Blue]As[/COLOR] Int32) [COLOR=Blue]As[/COLOR] Int32
 
    [COLOR=Blue]Private Sub[/COLOR] Button1_Click([COLOR=Blue]ByVal[/COLOR] sender [COLOR=Blue]As[/COLOR] System.Object, [COLOR=Blue]ByVal[/COLOR] e [COLOR=Blue]As[/COLOR] System.EventArgs) [COLOR=Blue]Handles[/COLOR] Button1.Click
        [COLOR=Green]'/// buffer to receive the MacAddress into...[/COLOR]
        [COLOR=Blue]Dim[/COLOR] buf(6) [COLOR=Blue]As Byte[/COLOR]
        [COLOR=Green]'/// specify your ip to check here *** remember to add Imports System.NET at the top of the code window *** ...[/COLOR]
        [COLOR=Blue]Dim[/COLOR] ip [COLOR=Blue]As[/COLOR] IPAddress = IPAddress.Parse("192.168.0.4")
 
        [COLOR=Blue]If[/COLOR] SendARP(BitConverter.ToInt32(IPAddress.Parse("192.168.0.4").GetAddressBytes, 0), 0, buf, 6) = 0 [COLOR=Blue]Then[/COLOR]
            Console.WriteLine(BitConverter.ToString(buf, 0, 6))
        [COLOR=Blue]End If[/COLOR]
 
    [COLOR=Blue]End Sub[/COLOR]