[  479.540640][T17005] sctp: Hash tables configured (bind 32/56)
[  500.549199][    C0] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  501.800099][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  502.212281][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  502.495658][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  502.574795][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  502.794539][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  502.979888][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  503.078307][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  503.348274][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  559.686515][T17584] socat (17584) used greatest stack depth: 23312 bytes left
[  563.469473][T17624] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  563.530871][T17626] br0: port 1(veth0) entered blocking state
[  563.531683][T17626] br0: port 1(veth0) entered disabled state
[  563.531996][T17626] veth0: entered allmulticast mode
[  563.535348][T17626] veth0: entered promiscuous mode
[  563.589739][T17630] br0: port 2(veth1) entered blocking state
[  563.589971][T17630] br0: port 2(veth1) entered disabled state
[  563.590186][T17630] veth1: entered allmulticast mode
[  563.592121][T17630] veth1: entered promiscuous mode
[  563.632956][T17631] br0: port 2(veth1) entered blocking state
[  563.633265][T17631] br0: port 2(veth1) entered forwarding state
[  563.633901][T17631] br0: port 1(veth0) entered blocking state
[  563.634093][T17631] br0: port 1(veth0) entered forwarding state
[  570.221216][T17650] nf_queue (17650) used greatest stack depth: 23056 bytes left
[  575.836662][T17669] nf_queue (17669) used greatest stack depth: 22840 bytes left
[  576.146752][   T12] br0: port 1(veth0) entered disabled state
[  576.152596][   T12] veth0 (unregistering): left allmulticast mode
[  576.153096][   T12] veth0 (unregistering): left promiscuous mode
[  576.153465][   T12] br0: port 1(veth0) entered disabled state
[  576.347658][   T12] br0: port 2(veth1) entered disabled state
[  576.352186][   T12] veth1 (unregistering): left allmulticast mode
[  576.352485][   T12] veth1 (unregistering): left promiscuous mode
[  576.352770][   T12] br0: port 2(veth1) entered disabled state