Comments on: How to get the MAC address of your network adapter.

By: Just Another Developer

Just Another Developer — Thu, 26 Mar 2009 18:44:45 +0000

BTW, your params for calling GetAdapterInfo() is backwards. Maybe you should test your code before posting?

DWORD GetAdaptersInfo(
__out PIP_ADAPTER_INFO pAdapterInfo,
__inout PULONG pOutBufLen
);

By: Just Another Developer

Just Another Developer — Thu, 26 Mar 2009 18:40:41 +0000

In the 15 years of C++ development, I’ve never seen the NIC Name show up under AdapterName property. It’s always shown up under Description.

By: Jijo.Raj

Jijo.Raj — Wed, 04 Mar 2009 16:31:12 +0000

Hello Prasanna,

Check this link for getting the active IP address(es) of your machine – http://bobmoore.mvps.org/Win32/w32tip19.htm.

And IP_ADAPTER_INFO.CurrentIpAddress contains the active IP of the adapter. So loop through all adapter info and get the active adapter and there by you can get the mac address of active adapter.

Well, keep in mind that, a PC can have multiple adapter and multiple IP addresses configured at same time. That does mean that there can be multiple active MAC addresses. Hope it helps you.

Regards,
Jijo.

By: prasanna

prasanna — Wed, 04 Mar 2009 10:06:33 +0000

Hello,

Sometimes, this mac address is returning morethan one mac id. Then how should i find in them which is the active macid

Regards
Prasanna

By: Sachin

Sachin — Sun, 19 Oct 2008 06:47:10 +0000

Ananth, you need to download the Microsoft SDKs which is not included in the Visual C++ 6, that contains new libraries, headers for VC++ 6.

By: Ananth

Ananth — Sat, 20 Sep 2008 05:35:31 +0000

Hello,
From where can I get Iphlpapi.h and Iphlpapi.lib? I am using VC++ 6.0.

Regards
Ananth