Do all NICs have MAC Address

**SAScooby** · 08-13-2004, 06:53 AM

Hi thanks for the response

I work as a sub contractor and I tested this on a customers site, so I dont know the topology of the network sorry,

I will check the bios out

**Supermike** · 08-17-2004, 09:36 PM

Don'y know if you are still having this problem or not, but I asked a buddy who has alot of experience working on computers of all types. He had run into this problem with the SIS chipset before and recalled that he just had to update the drivers and the MAC address either returned or he was able to set it.

**Darryl** · 08-24-2004, 03:32 AM

Under Windows XP, if you don't have a network cable connected, your MAC address is not available. Might be relevant, might not. Just wanted to chip in.

Have fun,
Darryl.

**Chairboy** · 08-24-2004, 04:16 AM

BTW, it's NBTSTAT, not NBSTAT.

**blurp** · 08-25-2004, 12:19 AM

Be very careful where you plug your laptop in with a MAC of all 0's. I'm a systems analyst at a very large GM automotive plant with a flat, switched network. Every so often, someone puts a PLC online without configuring it's MAC (some of the ethernet modules we use come configured with all 0's). It creates such an ARP storm that it takes down large sections of the network (sometimes an entire switch). And at $5000 per minute for downtime (at this plant), you don't want to be the one who causes something like this.

**Supermike** · 08-26-2004, 07:10 AM

It must be nice at least that all your users are machines

**blurp** · 08-26-2004, 02:08 PM

Originally Posted by Supermike

It must be nice at least that all your users are machines

heh...I wish. There would be a lot fewer problems. The machines rarely misbehave. It takes a human to really screw thing up. Man, the stories I could tell, if it weren't for my confidentiality clause.