[ 2605.849888] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 2605.876529] br0: port 1(veth1) entered blocking state
[ 2605.876900] br0: port 1(veth1) entered disabled state
[ 2605.877336] device veth1 entered promiscuous mode
[ 2605.877815] br0: port 1(veth1) entered blocking state
[ 2605.878155] br0: port 1(veth1) entered forwarding state
[ 2605.878518] IPv6: ADDRCONF(NETDEV_CHANGE): br0: link becomes ready
[ 2605.879972] br0: port 1(veth1) entered disabled state
[ 2605.881551] br0: port 2(veth3) entered blocking state
[ 2605.881905] br0: port 2(veth3) entered disabled state
[ 2605.882303] device veth3 entered promiscuous mode
[ 2605.981543] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 2605.982012] br0: port 1(veth1) entered blocking state
[ 2605.982328] br0: port 1(veth1) entered forwarding state
[ 2606.051709] IPv6: ADDRCONF(NETDEV_CHANGE): veth3: link becomes ready
[ 2606.052174] br0: port 2(veth3) entered blocking state
[ 2606.052494] br0: port 2(veth3) entered forwarding state
[ 2614.680603] device veth0 entered promiscuous mode
[ 2615.006895] device veth2 entered promiscuous mode
[ 2748.896411] br0: port 1(veth1) entered disabled state
[ 2749.065933] br0: port 2(veth3) entered disabled state
[ 2749.132906] device veth1 left promiscuous mode
[ 2749.133269] br0: port 1(veth1) entered disabled state
[ 2749.188346] device veth3 left promiscuous mode
[ 2749.188704] br0: port 2(veth3) entered disabled state