Recently, after some testing, I builded an NLB "cluster" in one of our webservers (actually, in the one we already had and in a new one ).

It works fine but since that I'm able to sniff the traffic between the members of the nlb and its clients from whatever else computer on the network in promiscuous mode...

Is that normal?
Why does it happens if no one of the destination address (ethernet, ip) is broadcast?

Any haelp would be appreciated.

Thank you.