[  375.964288] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  375.976596] br0: port 1(c1) entered blocking state
[  375.976633] br0: port 1(c1) entered disabled state
[  375.976683] c1: entered allmulticast mode
[  375.976726] c1: entered promiscuous mode
[  375.988416] br0: port 2(c2) entered blocking state
[  375.988451] br0: port 2(c2) entered disabled state
[  375.988486] c2: entered allmulticast mode
[  375.988527] c2: entered promiscuous mode
[  376.000619] br0: port 3(c3) entered blocking state
[  376.000652] br0: port 3(c3) entered disabled state
[  376.000683] c3: entered allmulticast mode
[  376.000722] c3: entered promiscuous mode
[  376.012343] br0: port 4(sender) entered blocking state
[  376.012378] br0: port 4(sender) entered disabled state
[  376.012410] sender: entered allmulticast mode
[  376.012453] sender: entered promiscuous mode
[  376.017065] br0: port 4(sender) entered blocking state
[  376.017100] br0: port 4(sender) entered forwarding state
[  376.017130] br0: port 3(c3) entered blocking state
[  376.017163] br0: port 3(c3) entered forwarding state
[  376.017194] br0: port 2(c2) entered blocking state
[  376.017222] br0: port 2(c2) entered forwarding state
[  376.017257] br0: port 1(c1) entered blocking state
[  376.017283] br0: port 1(c1) entered forwarding state
[  376.023896] Bridge firewalling registered
[  386.620008] br0: port 1(c1) entered disabled state
[  386.620275] c1 (unregistering): left allmulticast mode
[  386.620309] c1 (unregistering): left promiscuous mode
[  386.620344] br0: port 1(c1) entered disabled state
[  386.648989] br0: port 3(c3) entered disabled state
[  386.649063] br0: port 2(c2) entered disabled state
[  386.649231] c3 (unregistering): left allmulticast mode
[  386.649265] c3 (unregistering): left promiscuous mode
[  386.649291] br0: port 3(c3) entered disabled state
[  386.649515] c2 (unregistering): left allmulticast mode
[  386.649550] c2 (unregistering): left promiscuous mode
[  386.649580] br0: port 2(c2) entered disabled state
[  386.667008] sender: left allmulticast mode
[  386.667037] sender: left promiscuous mode
[  386.667066] br0: port 4(sender) entered disabled state