Like already exposed (and tried without success) here : Passive TAP / HUB and Ethernet Bridge
I still need to get a TAP like device for monitoring and analysis all the traffic between my ISP provider BOX and my OpenWRT Home BOX...
All traffic is actually invisible by tcpdump, because the bridge act as a hardware switching bridge ! (I suppose)
How can I force a software only bridge instead of a hardware switching ?
I must precise that Marvell EspressoBin Board actually not has any switch/VLAN tagging possibilities...
I have also seeing possibilities of port mirroring, but I am not sure it is bridge like...
I also read about firewall ethernet with tee for mirroring the traffic...
Any help will be usefull...
Also any advices about another method to get my traffic analyser monitor being successfull !
Thanks in advance