Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

MAC address

MAC address

MAC address

Can someone please describe the MAC address on a 5/05 processor with respect to its ethernet port?

RE: MAC address

MAC is an acronym for (I think) Machine Access Code. It is a unique hardware address for the ethernet controller, which is allocated by the manufacturer and cannot be changed.

When you configure the system you can presumably allocate an IP address. Programs within the TCP/IP suite will then be used to determine the MAC address of ethernet controllers on your network for each IP address. When an IP message is sent onto the network, the message will contain a destination MAC address.

RE: MAC address

Actually it is the Media Access Control address.
This is a unique address given to hardware devices, but on some devices, this is programmable, (although I would not recommend messing with this).
The other info tomatge gave is basically correct, but if you would like a deeper understanding of ethernet, and TCP/IP, I would suggest www.iol.unh.edu/training/ethernet.html, and www.pugettech.com/net101/. These are some good tutorials on networking.

Best of luck.

RE: MAC address

The MAC address can usually be found on a sticker or etched into the controller card itself. The MAC will look similar to this: ab-00-11-22-33-cd not always hyphen seperated but almost always in hexidecimal form and 12 characters. (If you run into a binary MAC it will be 48 bits). Sometimes the MAC is also refered to as the Hardware or Ethernet address. All ethernet comms will have a layer 2 address (MAC) and can have a layer 3 such as IP. You will never have IP without MAC as the IP address is dependant on the MAC for physically locating the devices.

Go to your favorite search engine and type in MAC address or TCP/IP or OSI Model for more information. Have fun!

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close