[ 3831.578898] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 3831.714676] br0: port 1(dummy0) entered blocking state [ 3831.717454] br0: port 1(dummy0) entered disabled state [ 3831.719596] device dummy0 entered promiscuous mode [ 3831.951564] br0: port 1(dummy0) entered blocking state [ 3831.953191] br0: port 1(dummy0) entered forwarding state [ 3831.954634] IPv6: ADDRCONF(NETDEV_CHANGE): br0: link becomes ready