From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0) Description of problem: I use SIOCSARP to force a permanent IP/MAC combination into the ARP cache. The first message I try to send to this device (using UDP/IP) contains 00:00:00:00:00:00 in the destination MAC address field. Subsequent messages are correct. A display of the ARP cache prior to the send shows the entry. Version-Release number of selected component (if applicable): How reproducible: Sometimes Steps to Reproduce: 1.Force IP/MAC combination into ARP cache 2.Send UDP packet to the destination host 3.Look at message on sniffer Additional info:
Please close this trouble report, the problem was caused by my own device driver which I have subsequently corrected.