[Bob Foxworth <bfoxworth@xxxxxxxxxxxxxxxx>]

> 	2) the network is a switched network (which includes networks
> 	   using switched hubs) and the port into which the machine
> 	   running Ethereal is plugged is not set up to have traffic
> 	   between other ports mirrored to it;
> 	
> 
> I suspect the most likely explanation is 2).  Bear in mind that, as
> noted, there are "hubs" that are really switches, called "switched
> hubs", so the fact that the network uses a "hub" does not, in and of
> itself, mean it's not switched.
> 
	[Bob Foxworth]  I just ran into this TODAY with a Linksys hub that
	happily said `hub' on the front panel, but behaved like a switch,
when
	we could not see expected traffic. Just swapped it with an old
Netgear
	and the capture then worked. The Netgear was a true hub.  It pays to
	not discard your old equipment I suppose...