DSA switch / bridge config for ulog2 traffic analysis

Can anybody help about ulogd analysis of bridged interfaces ?
I get ulogd working but I have only the traffic of the default interface (WAN) not the bridged ones (lan0+lan1)...

tcpdump show me the traffic from the br-lan (lan0+lan1) but nothing with ulogd...

Can I use ulogd (ulog2) for analysing traffic of a bridge ?

I have already tcpdump and all is okay with it… full paquet logging when I specify my bridged lans network interface…
ulogd receive only paquets from the WAN interface, which is used for ssh and syslog/ulog, and also http (for luci interface)…

My bridged interface, without IP stack do not look to logging into ulog…
I have tested with IP stack, same behaiour…
I also made promisc mode on all networks interfaces, but get nothing more…

Can I use ulogd to specifically log an interface ? (my bridged one)…
Can I use ulogd with the NFCT plugin to log ethernet bridged interface (like a TAP passive monitoring interface) ?

If I disable or stop iptables, i get nothing at all, ulogd become full silent !
Did I need some IPTABLES rules to get my bridge interface talking with ulogd ?

Thanks at all for any help you can give me…

FS#1622 - DSA switch port vlan
what else can I test to get conntrack see my DSA bridged interfaces traffic ?