---- David Timms <dtimms@xxxxxxxxxxxx> wrote: > Ed Greshko wrote: > > zephod@xxxxxxxxxx wrote: > > > >> On to my next problem. Why can't this FC6 box see any http traffic from a > >> Windows Vista box on my local network when it is obviously connecting to > >> various web sites? I'm using Wireshark and yes, I have opened up the > >> firewall. I can see ICMP traffic and other protocols from the Windows box > >> and I can see http traffic from my FC6 box. > > > > Is your FC6 box acting as a router in your network? Or, are both the > > Windows box and FC6 connected to a switch? If the latter, then don't expect > > to see much traffic from the Windows host since a switch prevents that. You > > will a small amount of traffic from the Windows box in the form of > > "broadcast" traffic. > You can work around the efficient, learning capability of the switch > that stops the sniffing by changing the device to a boring old hub, > which blats each incoming packet out all other ports. I've got a Linksys WRT54G that I have flashed with the DD-WRT firmware. Perhaps there is some setting that will allow me to see all the traffic. I will look at it this evening. > That was my reason for keeping mine around. > > Also check that you are starting sniffing in promiscuous mode, the default. I am. I checked that. > You could also set up a third machine with two network cards and > configure it as a transparent bridge; with wireshark installed, you can > then see all traffic. Pehaps if I had a 3rd machine and a couple of network cards ;-) Steve