[  242.082268] sctp: Hash tables configured (bind 256/256)
[  258.862774] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  258.967359] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  258.989212] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  259.160222] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  259.445252] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  259.479318] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  259.513375] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  259.524960] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  259.539242] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  259.560369] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  308.017332] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  308.022576] br0: port 1(veth0) entered blocking state
[  308.022659] br0: port 1(veth0) entered disabled state
[  308.022735] veth0: entered allmulticast mode
[  308.022850] veth0: entered promiscuous mode
[  308.026724] br0: port 2(veth1) entered blocking state
[  308.026764] br0: port 2(veth1) entered disabled state
[  308.026796] veth1: entered allmulticast mode
[  308.026860] veth1: entered promiscuous mode
[  308.031664] br0: port 2(veth1) entered blocking state
[  308.031707] br0: port 2(veth1) entered forwarding state
[  308.031746] br0: port 1(veth0) entered blocking state
[  308.031779] br0: port 1(veth0) entered forwarding state
[  318.617502] br0: port 1(veth0) entered disabled state
[  318.617737] veth0 (unregistering): left allmulticast mode
[  318.617777] veth0 (unregistering): left promiscuous mode
[  318.617823] br0: port 1(veth0) entered disabled state
[  318.632992] br0: port 2(veth1) entered disabled state
[  318.633161] veth1 (unregistering): left allmulticast mode
[  318.633195] veth1 (unregistering): left promiscuous mode
[  318.633224] br0: port 2(veth1) entered disabled state