I seem to remember several years ago (Haven't really done anything with
TokenRing) that there a lot of TR NICs that could *not* be made to work
in promisc mode. I think IBM, Madge and Olicom were the big names
then. This was back in the days of ISA busses. I think the IBMs at least
were not able to do promisc. at all, and there were others as well.
Has this been changed now? Last year at a computer show I bought
five TR 4/16 NICs at $2 each hoping I could build an analyzer but don't
even have a network to test them on. This guy had literally a barrelful
of TR NICs, all equipment pulls. Most ISA, a few PCI.
> > can ethereal grep the beaconing packet??
>
> Only if the token-ring interface on your machine will, at least when put
> into promiscuous mode, supply beaconing packets as input
>
> Ethereal depends on the raw packet capture mechanism in the OS, and on
> the network card and the driver of the card, to supply it with packets;
>