I may be wrong here, but I thought that the original post was looking for
an ethernet tap for perform protocol analysis. Nmap is a port scanner
which simply probes a host an reports on which services are available on
that host. Tcpdump or Network Monitor for the NT would be a better example
of a sniffer.
I think however the person was looking to build a tap rather than placing a
device in promiscuous mode (which is detectable). I'm not sure if the taps
are detectable or not.
As far as port scanning Nmap is pretty complete.
- Bennett
At 12:25 06/22/2000 , Ronneil Camara wrote:
>Has anyone tried Nmap for linux? What can you say about it?
>
>Niel
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