[  421.990585] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  422.006202] br0: port 1(c1) entered blocking state
[  422.006239] br0: port 1(c1) entered disabled state
[  422.006261] c1: entered allmulticast mode
[  422.006298] c1: entered promiscuous mode
[  422.020510] br0: port 2(c2) entered blocking state
[  422.020542] br0: port 2(c2) entered disabled state
[  422.020571] c2: entered allmulticast mode
[  422.020607] c2: entered promiscuous mode
[  422.034383] br0: port 3(c3) entered blocking state
[  422.034447] br0: port 3(c3) entered disabled state
[  422.034502] c3: entered allmulticast mode
[  422.034580] c3: entered promiscuous mode
[  422.048263] br0: port 4(sender) entered blocking state
[  422.048294] br0: port 4(sender) entered disabled state
[  422.048316] sender: entered allmulticast mode
[  422.048354] sender: entered promiscuous mode
[  422.053584] br0: port 4(sender) entered blocking state
[  422.053614] br0: port 4(sender) entered forwarding state
[  422.053637] br0: port 3(c3) entered blocking state
[  422.053653] br0: port 3(c3) entered forwarding state
[  422.053673] br0: port 2(c2) entered blocking state
[  422.053690] br0: port 2(c2) entered forwarding state
[  422.053706] br0: port 1(c1) entered blocking state
[  422.053725] br0: port 1(c1) entered forwarding state
[  422.059982] Bridge firewalling registered
[  432.658438] br0: port 1(c1) entered disabled state
[  432.658740] c1 (unregistering): left allmulticast mode
[  432.658816] c1 (unregistering): left promiscuous mode
[  432.658849] br0: port 1(c1) entered disabled state
[  432.681909] br0: port 2(c2) entered disabled state
[  432.682093] c2 (unregistering): left allmulticast mode
[  432.682119] c2 (unregistering): left promiscuous mode
[  432.682136] br0: port 2(c2) entered disabled state
[  432.700907] br0: port 4(sender) entered disabled state
[  432.700984] br0: port 3(c3) entered disabled state
[  432.701124] sender (unregistering): left allmulticast mode
[  432.701146] sender (unregistering): left promiscuous mode
[  432.701167] br0: port 4(sender) entered disabled state
[  432.701458] c3 (unregistering): left allmulticast mode
[  432.701478] c3 (unregistering): left promiscuous mode
[  432.701498] br0: port 3(c3) entered disabled state