[  436.270708][T17028] sctp: Hash tables configured (bind 32/56)
[  457.741566][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  458.500008][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  458.545547][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  458.580861][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  458.797909][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  458.912090][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  459.346360][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  459.830268][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  460.398596][    C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  460.488487][    C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  476.887296][T17248] socat (17248) used greatest stack depth: 23504 bytes left
[  517.513467][T17708] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  517.576798][T17710] br0: port 1(veth0) entered blocking state
[  517.577304][T17710] br0: port 1(veth0) entered disabled state
[  517.578508][T17710] veth0: entered allmulticast mode
[  517.580412][T17710] veth0: entered promiscuous mode
[  517.623136][T17711] br0: port 2(veth1) entered blocking state
[  517.624418][T17711] br0: port 2(veth1) entered disabled state
[  517.624763][T17711] veth1: entered allmulticast mode
[  517.626531][T17711] veth1: entered promiscuous mode
[  517.665701][T17715] br0: port 2(veth1) entered blocking state
[  517.666204][T17715] br0: port 2(veth1) entered forwarding state
[  517.666912][T17715] br0: port 1(veth0) entered blocking state
[  517.667235][T17715] br0: port 1(veth0) entered forwarding state
[  530.576198][   T70] br0: port 1(veth0) entered disabled state
[  530.580407][   T70] veth0 (unregistering): left allmulticast mode
[  530.580845][   T70] veth0 (unregistering): left promiscuous mode
[  530.581301][   T70] br0: port 1(veth0) entered disabled state
[  530.731459][   T70] br0: port 2(veth1) entered disabled state
[  530.746788][   T70] veth1 (unregistering): left allmulticast mode
[  530.747155][   T70] veth1 (unregistering): left promiscuous mode
[  530.747506][   T70] br0: port 2(veth1) entered disabled state