[ 438.858824] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this. [ 438.923471] br0: port 1(dummy0) entered blocking state [ 438.928629] br0: port 1(dummy0) entered disabled state [ 438.933975] device dummy0 entered promiscuous mode [ 439.036867] br0: port 1(dummy0) entered blocking state [ 439.042002] br0: port 1(dummy0) entered forwarding state [ 439.047408] IPv6: ADDRCONF(NETDEV_CHANGE): br0: link becomes ready