[PLUG] Sniffing networking traffic
Vincent Yau
v_yau3 at hotmail.com
Wed Oct 27 06:10:03 UTC 2004
Hi:
I have one linux box and a VOIP adaptor. They are connected to
the same hub, then to a cable modem router and then
to my cable modem.
I want the linux box to be able to capture network traffic
that is directed to the VOIP adator. I have turned on eth0
to promiscuous mode. I tried running both
tcpdump and ethereal. Neither detected anything
beyond what is meant for the Linux box.
It is my understanding that by putting the linux on a hub, and turning
its eth0 to promiscuous, I should be able to detect
all traffic going through on the same hub.
Am I missing a step?
Thanks for any pointer.
--Vincent
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