On Tue, Sep 25, 2001 at 11:38:48PM +0100, John Bland wrote:
>
> Hi,
Hi,
> Nothing to do with bridging setups or firewalling but something
> (seemingly) simple: can you sniff networks on the other side of a bridge?
>
> Eg if there is a machine, 192.168.0.1 on one side of a bridge and another
> machine 192.168.0.10 on the other side of the bridge could one machine
> sniff the network activity of another with something like
>
> tcpdump host 192.168.0.10 (from 192.168.0.1)
That only works if 192.168.0.10 is talking to a machine on the side of .0.1.
If 0.10 talks to a machine on its own side of the bridge, no traffic will
pass through the bridge. It probably won't even reach the bridge, in case
you have a switched network (switches are smart.. they know where traffic
has to go).
cheers,
Lennert
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