Oliver Lehmann <oli...@freebsd.org> wrote: > > when I update the BIOS of my new AM3+ Mainboard, The MAC address of > my re0 card gets changed from c8:60:00:60:3b:c6 to ed:0b:00:00:e0:00 > With this change, no communication with any other FreeBSD system is > possible.
The mac address ed:0b:00:00:e0:00 is a multicast mac (first octet has bit 1 set), which means it is not suitable for use with a unicast IP. Other systems when they see your ARP reply with a multicast mac, are going to treat this as an error, and ignore your ARP. You could work around the problem by forcing the mac to something else, (such as 22:44:66:11:22:33) and then other systems will believe that the mac is acceptable for unicast. However, it's clear that your NIC's eeprom has been programmed with an incorrect mac setting, which it sounds like you are already trying to fix. -- David DeSimone == Network Admin == f...@verio.net "I don't like spinach, and I'm glad I don't, because if I liked it I'd eat it, and I just hate it." -- Clarence Darrow This email message is intended for the use of the person to whom it has been sent, and may contain information that is confidential or legally protected. If you are not the intended recipient or have received this message in error, you are not authorized to copy, distribute, or otherwise use this message or its attachments. Please notify the sender immediately by return e-mail and permanently delete this message and any attachments. Verio, Inc. makes no warranty that this email is error or virus free. Thank you. _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
