[ 2431.243981] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 2431.290498] br0: port 1(veth1) entered blocking state
[ 2431.295555] br0: port 1(veth1) entered disabled state
[ 2431.300851] device veth1 entered promiscuous mode
[ 2431.305730] br0: port 1(veth1) entered blocking state
[ 2431.310774] br0: port 1(veth1) entered forwarding state
[ 2431.316024] IPv6: ADDRCONF(NETDEV_CHANGE): br0: link becomes ready
[ 2431.322846] br0: port 1(veth1) entered disabled state
[ 2431.328511] br0: port 2(veth3) entered blocking state
[ 2431.333556] br0: port 2(veth3) entered disabled state
[ 2431.338843] device veth3 entered promiscuous mode
[ 2431.449392] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 2431.456271] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 2431.462665] br0: port 1(veth1) entered blocking state
[ 2431.467714] br0: port 1(veth1) entered forwarding state
[ 2431.588828] IPv6: ADDRCONF(NETDEV_CHANGE): veth2: link becomes ready
[ 2431.595298] IPv6: ADDRCONF(NETDEV_CHANGE): veth3: link becomes ready
[ 2431.601701] br0: port 2(veth3) entered blocking state
[ 2431.606748] br0: port 2(veth3) entered forwarding state
[ 2440.335511] device veth0 entered promiscuous mode
[ 2440.730952] device veth2 entered promiscuous mode
[ 2574.544307] br0: port 1(veth1) entered disabled state
[ 2574.724299] br0: port 2(veth3) entered disabled state
[ 2574.793010] device veth1 left promiscuous mode
[ 2574.797529] br0: port 1(veth1) entered disabled state
[ 2574.846993] device veth3 left promiscuous mode
[ 2574.851492] br0: port 2(veth3) entered disabled state