[  421.017835] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  421.034339] br0: port 1(c1) entered blocking state
[  421.034385] br0: port 1(c1) entered disabled state
[  421.034420] c1: entered allmulticast mode
[  421.034476] c1: entered promiscuous mode
[  421.050096] br0: port 2(c2) entered blocking state
[  421.050178] br0: port 2(c2) entered disabled state
[  421.050254] c2: entered allmulticast mode
[  421.050338] c2: entered promiscuous mode
[  421.065783] br0: port 3(c3) entered blocking state
[  421.065827] br0: port 3(c3) entered disabled state
[  421.065866] c3: entered allmulticast mode
[  421.065914] c3: entered promiscuous mode
[  421.081280] br0: port 4(sender) entered blocking state
[  421.081318] br0: port 4(sender) entered disabled state
[  421.081351] sender: entered allmulticast mode
[  421.081414] sender: entered promiscuous mode
[  421.087436] br0: port 4(sender) entered blocking state
[  421.087474] br0: port 4(sender) entered forwarding state
[  421.087503] br0: port 3(c3) entered blocking state
[  421.087531] br0: port 3(c3) entered forwarding state
[  421.087559] br0: port 2(c2) entered blocking state
[  421.087588] br0: port 2(c2) entered forwarding state
[  421.087616] br0: port 1(c1) entered blocking state
[  421.087644] br0: port 1(c1) entered forwarding state
[  421.094780] Bridge firewalling registered
[  431.743248] br0: port 1(c1) entered disabled state
[  431.743444] c1 (unregistering): left allmulticast mode
[  431.743482] c1 (unregistering): left promiscuous mode
[  431.743512] br0: port 1(c1) entered disabled state
[  431.765072] br0: port 2(c2) entered disabled state
[  431.765219] c2 (unregistering): left allmulticast mode
[  431.765256] c2 (unregistering): left promiscuous mode
[  431.765295] br0: port 2(c2) entered disabled state
[  431.788094] br0: port 4(sender) entered disabled state
[  431.788176] br0: port 3(c3) entered disabled state
[  431.788328] sender (unregistering): left allmulticast mode
[  431.788360] sender (unregistering): left promiscuous mode
[  431.788387] br0: port 4(sender) entered disabled state
[  431.788599] c3 (unregistering): left allmulticast mode
[  431.788633] c3 (unregistering): left promiscuous mode
[  431.788665] br0: port 3(c3) entered disabled state