[ 8402.459435] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 8402.465640] br0: port 1(veth0) entered blocking state
[ 8402.466623] br0: port 1(veth0) entered disabled state
[ 8402.467812] device veth0 entered promiscuous mode
[ 8402.472318] br0: port 2(veth1) entered blocking state
[ 8402.473218] br0: port 2(veth1) entered disabled state
[ 8402.474330] device veth1 entered promiscuous mode
[ 8402.477675] br0: port 2(veth1) entered blocking state
[ 8402.478419] br0: port 2(veth1) entered forwarding state
[ 8402.479172] br0: port 1(veth0) entered blocking state
[ 8402.479875] br0: port 1(veth0) entered forwarding state
[ 8402.488901] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 8402.490216] br0: port 2(veth1) entered disabled state
[ 8402.498930] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 8402.500239] br0: port 2(veth1) entered blocking state
[ 8402.501191] br0: port 2(veth1) entered forwarding state
[ 8402.532084] device veth1 left promiscuous mode
[ 8402.532769] br0: port 2(veth1) entered disabled state
[ 8402.534241] device veth0 left promiscuous mode
[ 8402.534891] br0: port 1(veth0) entered disabled state