Date: Thu, 21 Aug 2003 11:06:55 -0600 From: "Aaron Wohl" <freebsd@soith.com> To: questions@freebsd.org Subject: hubs and promiscuous packet listening Message-ID: <20030821170655.1171437FC3@www.fastmail.fm>
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Does anyone know the model number of a cheap hub to use when packet sniffing? The two suposed hubs I have seem to be blocking packets not addressed to me same as a switch would... I'm trying tcpdump and ipgrab as root via a hub to listen to anouther computer. The interface is going into promiscuous mode as ifconfig shows: fxp0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500 But I cant see any traffic for the other machines on the hub. I tried listening on a linux box on the same hub with the same problem... I tried a second hub, same problem. One hub is a linksys EFAH05W the other is a linksys NH1005. I was wondering if linksys labeled a hub because only one packet can pass thru it and a time and it has no buffereing but its still not spamming each packet out all the ports like I want it to do for debugging?
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