| From: | Alan Buxey |
| Date: | 21 Aug 2000 at 14:50:26 |
| Subject: | Re: PCI BUS BOARD |
hi,
> Ethernet address, not IP address. 3coms have the "feature" of storing
> their MAC address in non-volatile memory, presumably so if one dies you
> can replace it with one with the same MAC address to save you having to
> redo any bootp stuff you have lying around. This has the disadvantage that
> occasionally they seem to forget it. I had to find a DOS boot floppy and
> download 3com's tools to reset it...
I have a Linux tool, vortex-diag, that enabled me to reprogram the 3com
vortex seris (509b/c) MAC address.
want my machine to be the same ID as that of the CEO? no sooner wanted than
done ;-)
> Allegedly the hubs we have have the strange property that under some
> circumstances they'll write corrupt entries to their ARP cache and then
> never get round to noticing that something is rather wrong. This seems to
> have happened in some strange combination with a single network segment
> which has conspired to cause the 100Mbit machines on there to be able to
> talk to themselves and nothing else. Coincidentally, the machines in
> question happen to be owned by the student computer society.
>
> It's not a conspriacy. It's not a conspiracy. It's not a conspiracy.
;-) I've had the problem of the switch saying the connection is half-duplex,
and the card saying its full-duplex. that causes wonderful network problems
alan
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