Hello James M., On 12-Aug-99, you wrote:
<snip>... LJM> MAC addr is another story. LJM> That should be fixed to the adaptor and never change. (Well, LJM> almost never. There are a few that have mac addresses that LJM> are able to be modified with a special utility. The only ones LJM> I know about are for older minicomputers...) LJM> Likewise, I have encountered systems where the Eth Addr could be changed but again, it was a long time ago and I think they were minis. I doubt the 3Com NIC Eth could be changed. LJM>> I have a portable with a 3Com 3CCE589ET CPCMCIA network LJM>> adapter. I'm also running arpwatch on my network to check for LJM>> "ellegal aliens". I noticed that everytime a reboot my portable LJM>> from linux to windows or the other way around I get a message LJM>> from arpwatch that the Ethernet address of my portable changed. LJM>> Shouldn't the ethernet address be network-card-specific. Is either LJM>> Linux or Windows98 changing my Ethernet address and ifso why? LJM>> Assuming arp on Debian is like other unixes I've used, go to another m/c on your network and ping your laptop then arp -a it - this should return the Eth. Do it before and after rebooting the L/T. Also, does arpwatch give you the addresses? Are the addresses consistent - is the change always from addr A to addr B or does it vary. For example, if you boot from Windoze to Debian and then back to W, what addresses are reported by arpwatch and what do you get by ping/arp -a at each step? Could this just be the NIC Eth going to null during the re-boot? Regards, LeeE -- http://www.spatial.freeserve.co.uk
