[  300.940593] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  300.955817] br0: port 1(c1) entered blocking state
[  300.955900] br0: port 1(c1) entered disabled state
[  300.955974] c1: entered allmulticast mode
[  300.956057] c1: entered promiscuous mode
[  300.969565] br0: port 2(c2) entered blocking state
[  300.969632] br0: port 2(c2) entered disabled state
[  300.969673] c2: entered allmulticast mode
[  300.969722] c2: entered promiscuous mode
[  300.983076] br0: port 3(c3) entered blocking state
[  300.983185] br0: port 3(c3) entered disabled state
[  300.983290] c3: entered allmulticast mode
[  300.983376] c3: entered promiscuous mode
[  300.996267] br0: port 4(sender) entered blocking state
[  300.996354] br0: port 4(sender) entered disabled state
[  300.996417] sender: entered allmulticast mode
[  300.996521] sender: entered promiscuous mode
[  301.001560] br0: port 4(sender) entered blocking state
[  301.001654] br0: port 4(sender) entered forwarding state
[  301.001724] br0: port 3(c3) entered blocking state
[  301.001820] br0: port 3(c3) entered forwarding state
[  301.001898] br0: port 2(c2) entered blocking state
[  301.001971] br0: port 2(c2) entered forwarding state
[  301.002058] br0: port 1(c1) entered blocking state
[  301.002126] br0: port 1(c1) entered forwarding state
[  301.009593] Bridge firewalling registered
[  311.661158] br0: port 1(c1) entered disabled state
[  311.661530] c1 (unregistering): left allmulticast mode
[  311.661593] c1 (unregistering): left promiscuous mode
[  311.661627] br0: port 1(c1) entered disabled state
[  311.685067] br0: port 3(c3) entered disabled state
[  311.685156] br0: port 2(c2) entered disabled state
[  311.685420] c3 (unregistering): left allmulticast mode
[  311.685483] c3 (unregistering): left promiscuous mode
[  311.685518] br0: port 3(c3) entered disabled state
[  311.686169] c2 (unregistering): left allmulticast mode
[  311.686233] c2 (unregistering): left promiscuous mode
[  311.686271] br0: port 2(c2) entered disabled state
[  311.706068] sender: left allmulticast mode
[  311.706156] sender: left promiscuous mode
[  311.706191] br0: port 4(sender) entered disabled state