[  244.057943] sctp: Hash tables configured (bind 256/256)
[  260.910012] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  261.114084] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  261.130347] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  262.136140] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  262.157427] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  263.217804] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  263.235896] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  308.019413] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  308.024583] br0: port 1(veth0) entered blocking state
[  308.024617] br0: port 1(veth0) entered disabled state
[  308.024657] veth0: entered allmulticast mode
[  308.024718] veth0: entered promiscuous mode
[  308.028352] br0: port 2(veth1) entered blocking state
[  308.028419] br0: port 2(veth1) entered disabled state
[  308.028487] veth1: entered allmulticast mode
[  308.028587] veth1: entered promiscuous mode
[  308.032180] br0: port 2(veth1) entered blocking state
[  308.032212] br0: port 2(veth1) entered forwarding state
[  308.032247] br0: port 1(veth0) entered blocking state
[  308.032278] br0: port 1(veth0) entered forwarding state
[  318.628009] br0: port 1(veth0) entered disabled state
[  318.628265] veth0 (unregistering): left allmulticast mode
[  318.628332] veth0 (unregistering): left promiscuous mode
[  318.628398] br0: port 1(veth0) entered disabled state
[  318.644272] br0: port 2(veth1) entered disabled state
[  318.644429] veth1 (unregistering): left allmulticast mode
[  318.644465] veth1 (unregistering): left promiscuous mode
[  318.644498] br0: port 2(veth1) entered disabled state