[ 2704.312831] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 2704.344745] br0: port 1(veth1) entered blocking state
[ 2704.345441] br0: port 1(veth1) entered disabled state
[ 2704.347299] device veth1 entered promiscuous mode
[ 2704.347877] br0: port 1(veth1) entered blocking state
[ 2704.348454] br0: port 1(veth1) entered forwarding state
[ 2704.352924] br0: port 2(veth3) entered blocking state
[ 2704.353503] br0: port 2(veth3) entered disabled state
[ 2704.356252] device veth3 entered promiscuous mode
[ 2704.356781] br0: port 2(veth3) entered blocking state
[ 2704.357355] br0: port 2(veth3) entered forwarding state
[ 2704.392355] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 2704.393050] br0: port 2(veth3) entered disabled state
[ 2704.436291] IPv6: ADDRCONF(NETDEV_CHANGE): veth3: link becomes ready
[ 2704.437024] br0: port 2(veth3) entered blocking state
[ 2704.437536] br0: port 2(veth3) entered forwarding state
[ 2712.897419] device veth0 entered promiscuous mode
[ 2713.195160] device veth2 entered promiscuous mode
[ 2846.792481] br0: port 1(veth1) entered disabled state
[ 2846.804226] br0: port 2(veth3) entered disabled state
[ 2846.823731] device veth1 left promiscuous mode
[ 2846.824298] br0: port 1(veth1) entered disabled state
[ 2846.829832] device veth3 left promiscuous mode
[ 2846.830351] br0: port 2(veth3) entered disabled state