[  421.208561] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  421.223161] br0: port 1(c1) entered blocking state
[  421.223196] br0: port 1(c1) entered disabled state
[  421.223221] c1: entered allmulticast mode
[  421.223262] c1: entered promiscuous mode
[  421.236802] br0: port 2(c2) entered blocking state
[  421.236829] br0: port 2(c2) entered disabled state
[  421.236912] c2: entered allmulticast mode
[  421.236984] c2: entered promiscuous mode
[  421.250457] br0: port 3(c3) entered blocking state
[  421.250483] br0: port 3(c3) entered disabled state
[  421.250566] c3: entered allmulticast mode
[  421.250632] c3: entered promiscuous mode
[  421.264109] br0: port 4(sender) entered blocking state
[  421.264137] br0: port 4(sender) entered disabled state
[  421.264186] sender: entered allmulticast mode
[  421.264258] sender: entered promiscuous mode
[  421.269494] br0: port 4(sender) entered blocking state
[  421.269545] br0: port 4(sender) entered forwarding state
[  421.269599] br0: port 3(c3) entered blocking state
[  421.269650] br0: port 3(c3) entered forwarding state
[  421.269703] br0: port 2(c2) entered blocking state
[  421.269752] br0: port 2(c2) entered forwarding state
[  421.269804] br0: port 1(c1) entered blocking state
[  421.269854] br0: port 1(c1) entered forwarding state
[  421.276014] Bridge firewalling registered
[  431.893728] br0: port 1(c1) entered disabled state
[  431.893953] c1 (unregistering): left allmulticast mode
[  431.893981] c1 (unregistering): left promiscuous mode
[  431.894002] br0: port 1(c1) entered disabled state
[  431.915158] br0: port 2(c2) entered disabled state
[  431.915340] c2 (unregistering): left allmulticast mode
[  431.915370] c2 (unregistering): left promiscuous mode
[  431.915391] br0: port 2(c2) entered disabled state
[  431.934124] br0: port 4(sender) entered disabled state
[  431.934210] br0: port 3(c3) entered disabled state
[  431.934365] sender (unregistering): left allmulticast mode
[  431.934396] sender (unregistering): left promiscuous mode
[  431.934418] br0: port 4(sender) entered disabled state
[  431.934719] c3 (unregistering): left allmulticast mode
[  431.934754] c3 (unregistering): left promiscuous mode
[  431.934773] br0: port 3(c3) entered disabled state