[  244.139611] sctp: Hash tables configured (bind 256/256)
[  261.240803] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  261.306207] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  261.367093] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  261.696184] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  261.756463] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  263.755760] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  263.817297] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  263.878211] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  306.990018] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  306.995389] br0: port 1(veth0) entered blocking state
[  306.995457] br0: port 1(veth0) entered disabled state
[  306.995524] veth0: entered allmulticast mode
[  306.995621] veth0: entered promiscuous mode
[  306.999411] br0: port 2(veth1) entered blocking state
[  306.999456] br0: port 2(veth1) entered disabled state
[  306.999490] veth1: entered allmulticast mode
[  306.999549] veth1: entered promiscuous mode
[  307.003228] br0: port 2(veth1) entered blocking state
[  307.003292] br0: port 2(veth1) entered forwarding state
[  307.003361] br0: port 1(veth0) entered blocking state
[  307.003424] br0: port 1(veth0) entered forwarding state
[  317.608746] br0: port 1(veth0) entered disabled state
[  317.608953] veth0 (unregistering): left allmulticast mode
[  317.608997] veth0 (unregistering): left promiscuous mode
[  317.609029] br0: port 1(veth0) entered disabled state
[  317.623132] br0: port 2(veth1) entered disabled state
[  317.623293] veth1 (unregistering): left allmulticast mode
[  317.623328] veth1 (unregistering): left promiscuous mode
[  317.623358] br0: port 2(veth1) entered disabled state