Hi
Sorry for not mentioning it in my previous mail - I am concerned about
Ethernet MAC addresses only.
I installed the Microsoft LoopBack adapter driver and NT assigned a MAC
address to it. Now “ipconfig -all” command produces two MAC addresses.
I am interested in identifying the MAC address of the Ethernet card only.
How can I do it? I
If I install the RAS driver in my PC, will NT introduce another MAC address?
Thanks and Regards
Sathya.
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com]On Behalf Of Larry Harmon
Sent: Monday, August 28, 2000 3:23 AM
To: NT Developers Interest List
Subject: [ntdev] Re: Help regarding MAC addresses
Are you talking about IEEE 802.3 or Ethernet MAC addresses? If so, then
they need to be assigned by the IEEE.
But to answer your question, yes some addresses are used for multicast.
The first bit of the first byte, if set, indicates the address is a
multicast.
Larry
----- Original Message -----
From: Sathiyamurthy Rajagopalan
To: NT Developers Interest List
Sent: Sunday, August 27, 2000 3:00 PM
Subject: [ntdev] Help regarding MAC addresses
Hi all,
This is a bit OT. I would appreciate if anyone can help me with the
information.
We have a requirement to get MAC addresses of NIC cards in machines.
We would like to make sure that the MAC address entered by the user is a
valid address assigned to a NIC device.
In TCP/IP, certain addresses are reserved, like 127.0.0.1 is set aside
for refering to the localhost.
I want to know if there are any such reserved MAC addresses (range?). I
remember reading somewhere that certain MAC addresses are reserved for
broadcating frames/packets. Am I correct? Where can I get information
regarding this?
Thanks and Regards
Sathya.