From Bugzilla Helper: User-Agent: Mozilla/4.74 [en] (X11; U; Linux 2.2.14-5.0 i686; Nav) My MAC address is all zeros as reported by ifconfig. Reproducible: Always Steps to Reproduce: 1./sbin/ifconfig 2. 3. Actual Results: 00:00:00:00:00:00 Expected Results: Globally unique MAC address It basically works anyway (00:00:00:00:00:00 is unique!) I've tried two ethernet cards, DE450 and DE500. I think both use tulip driver. I've ping'd it from multiple other machines (Redhat 6.2 and M$) arp -a shows all zero mac address.
This is fixed in a later kernel.
(You can get one from ftp://ftp.redhat.com/pub/redhat/rawhide/)