[  421.020213] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  421.035936] br0: port 1(c1) entered blocking state
[  421.035986] br0: port 1(c1) entered disabled state
[  421.036023] c1: entered allmulticast mode
[  421.036081] c1: entered promiscuous mode
[  421.051279] br0: port 2(c2) entered blocking state
[  421.051366] br0: port 2(c2) entered disabled state
[  421.051442] c2: entered allmulticast mode
[  421.051539] c2: entered promiscuous mode
[  421.065407] br0: port 3(c3) entered blocking state
[  421.065446] br0: port 3(c3) entered disabled state
[  421.065484] c3: entered allmulticast mode
[  421.065542] c3: entered promiscuous mode
[  421.079386] br0: port 4(sender) entered blocking state
[  421.079468] br0: port 4(sender) entered disabled state
[  421.079542] sender: entered allmulticast mode
[  421.079651] sender: entered promiscuous mode
[  421.084826] br0: port 4(sender) entered blocking state
[  421.084864] br0: port 4(sender) entered forwarding state
[  421.084896] br0: port 3(c3) entered blocking state
[  421.084932] br0: port 3(c3) entered forwarding state
[  421.084964] br0: port 2(c2) entered blocking state
[  421.084991] br0: port 2(c2) entered forwarding state
[  421.085029] br0: port 1(c1) entered blocking state
[  421.085060] br0: port 1(c1) entered forwarding state
[  421.092582] Bridge firewalling registered
[  431.769226] br0: port 1(c1) entered disabled state
[  431.769493] c1 (unregistering): left allmulticast mode
[  431.769540] c1 (unregistering): left promiscuous mode
[  431.769580] br0: port 1(c1) entered disabled state
[  431.801188] br0: port 2(c2) entered disabled state
[  431.801792] c2 (unregistering): left allmulticast mode
[  431.801833] c2 (unregistering): left promiscuous mode
[  431.801860] br0: port 2(c2) entered disabled state
[  431.822168] sender: left allmulticast mode
[  431.822243] sender: left promiscuous mode
[  431.822286] br0: port 4(sender) entered disabled state
[  431.822386] c3: left allmulticast mode
[  431.822419] c3: left promiscuous mode
[  431.822480] br0: port 3(c3) entered disabled state