I just installed another PCMCIA network adapter and now the MAC address is stable so it was indeed the card.
Thanks to all who helped ;-) Nico > > OK, I did some testing: rebooted from Linux to Windows and the other > way around a couple of times and got the following peculiar results: > > 1. linux: 0:80:0:10:b7:7c > 2. windows: 0:10:5a:92:b7:7c > 3. linux: 80:0:0:10:85:bb > 4. windows: 0:10:5a:92:b7:7c > 5. linux: 2:0:0:10:2:16 > 6. windows: 0:10:5a:92:b7:7c > 7. linux: 4:0:0:10:8:5b > It seems to be a linux-only problem, windows is stable (at least something > about Windows that's stable :-) ). > > ...wait a minute... turning of vmware ethernet bridge... > 8. linux: 0:10:5a:92:b7:7c > ...looks good... once more... > 9. linux: 1:0:0:10:1:b > ...damn... > 10. linux: 0:10:5a:92:b7:7c > > I think it's not even Linux, it's probably the card itself :-( > I should again get a bogus one... > > 11. linux: 1:0:0:10:1:b > ...yep there it is again :-( > > OK never mind it seems to be something with the card itself :-( > > > Nico > > > 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 > > > > > > > > > > -- > > Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] < /dev/null > > > > > -- > -------------------------------------------------------- > How do you tell when you run out of invisible ink? > -------------------------------------------------------- > Nico De Ranter > Sony Service Center (SUPC-E/NSSE) > Sint Stevens Woluwestraat 55 (Rue de Woluwe-Saint-Etienne) > 1130 Brussel (Bruxelles), Belgium, Europe, Earth > Telephone: +32 2 724 86 41 Telefax: +32 2 726 26 86 > e-mail: [EMAIL PROTECTED] > > > -- > Unsubscribe? mail -s unsubscribe [EMAIL PROTECTED] < /dev/null > -- -------------------------------------------------------- How do you tell when you run out of invisible ink? -------------------------------------------------------- Nico De Ranter Sony Service Center (SUPC-E/NSSE) Sint Stevens Woluwestraat 55 (Rue de Woluwe-Saint-Etienne) 1130 Brussel (Bruxelles), Belgium, Europe, Earth Telephone: +32 2 724 86 41 Telefax: +32 2 726 26 86 e-mail: [EMAIL PROTECTED]
