[  237.936943] sctp: Hash tables configured (bind 256/256)
[  254.797988] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  254.799466] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  254.806825] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  254.829252] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  254.833650] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  254.883141] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  254.900039] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  254.950252] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  254.956448] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  254.969834] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  300.982748] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  300.988544] br0: port 1(veth0) entered blocking state
[  300.988588] br0: port 1(veth0) entered disabled state
[  300.988624] veth0: entered allmulticast mode
[  300.988683] veth0: entered promiscuous mode
[  300.992983] br0: port 2(veth1) entered blocking state
[  300.993083] br0: port 2(veth1) entered disabled state
[  300.993166] veth1: entered allmulticast mode
[  300.993270] veth1: entered promiscuous mode
[  300.997269] br0: port 2(veth1) entered blocking state
[  300.997308] br0: port 2(veth1) entered forwarding state
[  300.997348] br0: port 1(veth0) entered blocking state
[  300.997377] br0: port 1(veth0) entered forwarding state
[  311.457820] br0: port 1(veth0) entered disabled state
[  311.458014] veth0 (unregistering): left allmulticast mode
[  311.458110] veth0 (unregistering): left promiscuous mode
[  311.458160] br0: port 1(veth0) entered disabled state
[  311.474156] br0: port 2(veth1) entered disabled state
[  311.474356] veth1 (unregistering): left allmulticast mode
[  311.474433] veth1 (unregistering): left promiscuous mode
[  311.474497] br0: port 2(veth1) entered disabled state