Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-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!
  • Students Click Here

*Tek-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 Troubleshooting

MAC Troubleshooting

MAC Troubleshooting

Greeting all,

Scenario: I have a SMC Wire router, and it is connected with 4 client PCs.

Background: MAC address is the unique number assigned to NIC(Network Interface Card)by the NIC manufacture.

Problem: The router works as a DHCP server and supposed to assign unique(& dynamic) IP address to each PC, but about 30 IP addresses are assigned to a particular PC. This PC has MAC of 00-00-00-00-00-00.

Troubleshooting: I wanted to know why this happened, so I checked SysInfo to verify the MAC, still same. I checked online forum for "BIOS killed MAC address", no luck. I know how to change the MAC in registry, but what I need to know is why so many IPs are assigned to the "invalid" MAC address. Thanks for reading and help if possible.:)

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 Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

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

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

Close Box

Join Tek-Tips® Today!

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

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close