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Dectect MAC address

 
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Pasukun



Joined: 16 Dec 2004
Posts: 84
PostPosted: Mon May 23, 2005 6:26 pm    Post subject: Dectect MAC address Reply with quote
Is there a way to detect MAC address of the local machine's network card?

I know I can find the Node name and IP address by using "A_ComputerName" and "A_IPAddress1".

It would be helpful to farther secure the script to only run on certain computer with the use of MAC address detection. This way I can create more risky scripts without worrying too much.

I know MAC address can be spoofed as well, but it is harder to do so and it will be better than nothing. Smile
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Jon



Joined: 28 Apr 2004
Posts: 373
PostPosted: Mon May 23, 2005 7:11 pm    Post subject: Reply with quote
This is probably the easiest way although you can probably do it with an API call as well-

Code:


runwait, %comspec% /c ipconfig /all > c:\mac.txt, ,hide

Loop, Read, c:\mac.txt
{
ifinstring, A_LoopReadLine, Physical Address
{
MAC=%A_LoopReadLine%
break
}
}

StringRight, MAC, MAC, 18
msgbox, %MAC%

filedelete, c:\mac.txt



Last edited by Jon on Tue May 24, 2005 12:58 pm; edited 1 time in total
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niwi



Joined: 27 Feb 2005
Posts: 128
Location: Heidelberg, Germany
PostPosted: Tue May 24, 2005 10:58 am    Post subject: Reply with quote
Hi Jon,

the 14th line isn't always correct.

Pasukun, you should search the output of the "ipconfig /all" command for the line containig "physical address" (is this the correct translation?).

NiWi.
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Jon



Joined: 28 Apr 2004
Posts: 373
PostPosted: Tue May 24, 2005 12:58 pm    Post subject: Reply with quote
niwi wrote:
Hi Jon,

the 14th line isn't always correct.

Pasukun, you should search the output of the "ipconfig /all" command for the line containig "physical address" (is this the correct translation?).

NiWi.


Thanks, I've edited my script above
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Jon



Joined: 28 Apr 2004
Posts: 373
PostPosted: Tue May 24, 2005 1:32 pm    Post subject: Reply with quote
Another way without a text file using corrupts CMDret DLL


Code:
; CMDret DLL version 3.1.1 (or greater) required

ret1 := CMDret(COMSPEC " /C ipconfig/all")

Loop, Parse, ret1, `n
{
ifinstring, A_LoopField, Physical Address
{
MAC=%A_LoopField%
break
}
}

StringRight, MAC, MAC, 19
msgbox, %MAC%


CMDret(CMD)
{
  VarSetCapacity(StrOut, 10000)
  RetVal := DllCall("cmdret.dll\RunReturn", "str", CMD, "str", StrOut)
  Return, %StrOut%
}
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Pasukun



Joined: 16 Dec 2004
Posts: 84
PostPosted: Tue May 24, 2005 6:34 pm    Post subject: Reply with quote
Thanks for the replies.

Yeah I was afraid of that..
Looks like the only way to get the MAC address value is to run "IPCONFIG /ALL" and use the "IfInString" command.
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niwi



Joined: 27 Feb 2005
Posts: 128
Location: Heidelberg, Germany
PostPosted: Wed May 25, 2005 11:04 am    Post subject: Reply with quote
Hi Pasukun,

the MAC address is hard coded on the NICs. It is possible to set a new MAC address and overriding the original by setting a registry key. In this case you could read the address from the registry, but this is not really recommended. Changing the MAC address requires a good know how about networking, because this may make trouble in a network if you not really know what the MAC address is used for.

I think the best solution is to use ipconfig.

NiWi.
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niwi



Joined: 27 Feb 2005
Posts: 128
Location: Heidelberg, Germany
PostPosted: Thu May 26, 2005 11:57 am    Post subject: Reply with quote
Hi,

maybe you also can try to use a DLLCall ("IPHLPAPI.DLL\GetAdaptersInfo"...). But I haven't used this function yet so I have no experience what exactly is to do (parameters etc.). My first try call's Dr. Watson Sad

NiWi.
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normel



Joined: 20 May 2005
Posts: 5
Location: NY, NY
PostPosted: Fri May 27, 2005 8:05 pm    Post subject: Reply with quote
Here's a little code you can use. It creates a vbscript, then executes it. This assumes you have W2K or later that supports WMI.

Code:
ifExist,c:\wutemp\temp.vbs
   filedelete,c:\wutemp\temp.vbs
fileappend,On Error Resume Next`n,c:\wutemp\temp.vbs
fileappend,Dim NumAdap(5)`n,c:\wutemp\temp.vbs
fileappend,set objFSO = CreateObject("Scripting.FileSystemObject")`n,c:\wutemp\temp.vbs
fileappend,Set f1 = objFSO.CreateTextFile("c:\wutemp\temp.txt"`, True)`n,c:\wutemp\temp.vbs
fileappend,Set objWMIService = GetObject("winmgmts:\\127.0.0.1\root\CIMV2")`n,c:\wutemp\temp.vbs
fileappend,Set colItems = objWMIService.ExecQuery("SELECT * FROM Win32_NetworkAdapter")`n,c:\wutemp\temp.vbs
fileappend,i = 0`n,c:\wutemp\temp.vbs
fileappend,For Each objItem In colItems`n,c:\wutemp\temp.vbs
fileappend,if objItem.MACAddress <> "" then`n,c:\wutemp\temp.vbs
fileappend,i = i + 1`n,c:\wutemp\temp.vbs
fileappend,NumAdap(i) = objItem.MACAddress`n,c:\wutemp\temp.vbs
fileappend,end if`n,c:\wutemp\temp.vbs
fileappend,Next`n,c:\wutemp\temp.vbs
fileappend,For j = 1 to i`n,c:\wutemp\temp.vbs
fileappend,f1.writeline(NumAdap(j))`n,c:\wutemp\temp.vbs
fileappend,Next`n,c:\wutemp\temp.vbs
fileappend,f1.Close,c:\wutemp\temp.vbs
run,c:\wutemp\temp.vbs
Loop, Read, c:\wutemp\temp.txt
{
   MAC = %A_LoopReadLine%
   msgbox,MAC = %MAC%
}
sleep 5000
ifExist,c:\wutemp\temp.vbs
   filedelete,c:\wutemp\temp.vbs
ifExist,c:\wutemp\temp.txt
   filedelete,c:\wutemp\temp.txt


You'll have to play with the last few lines, if you want to get rid of the temporary files the script creates. If you use runwait instead of run, it will work every time, and you won't need the sleep 5000 line, but it also runs a lot slower before the msgbox popped up.

The script will work with multiple NICs that have MAC addresses.
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