[ 2705.958240] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 2705.990211] br0: port 1(veth1) entered blocking state
[ 2705.990722] br0: port 1(veth1) entered disabled state
[ 2705.991939] device veth1 entered promiscuous mode
[ 2705.992527] br0: port 1(veth1) entered blocking state
[ 2705.993022] br0: port 1(veth1) entered forwarding state
[ 2705.998174] br0: port 2(veth3) entered blocking state
[ 2705.998693] br0: port 2(veth3) entered disabled state
[ 2706.000400] device veth3 entered promiscuous mode
[ 2706.000943] br0: port 2(veth3) entered blocking state
[ 2706.001450] br0: port 2(veth3) entered forwarding state
[ 2706.034024] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 2706.034778] br0: port 2(veth3) entered disabled state
[ 2706.074860] IPv6: ADDRCONF(NETDEV_CHANGE): veth3: link becomes ready
[ 2706.075546] br0: port 2(veth3) entered blocking state
[ 2706.076055] br0: port 2(veth3) entered forwarding state
[ 2714.470527] device veth0 entered promiscuous mode
[ 2714.741040] device veth2 entered promiscuous mode
[ 2848.305465] br0: port 1(veth1) entered disabled state
[ 2848.316407] br0: port 2(veth3) entered disabled state
[ 2848.339472] device veth1 left promiscuous mode
[ 2848.339999] br0: port 1(veth1) entered disabled state
[ 2848.347179] device veth3 left promiscuous mode
[ 2848.347669] br0: port 2(veth3) entered disabled state