[  440.687724][T17007] sctp: Hash tables configured (bind 32/56)
[  460.840580][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  461.328802][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  461.480415][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  461.976329][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  462.192848][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  462.347214][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  462.382837][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  462.559571][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  462.668739][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  462.961554][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[  517.208100][T17642] socat (17642) used greatest stack depth: 23328 bytes left
[  520.444181][T17681] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[  520.514890][T17682] br0: port 1(veth0) entered blocking state
[  520.515374][T17682] br0: port 1(veth0) entered disabled state
[  520.515958][T17682] veth0: entered allmulticast mode
[  520.517713][T17682] veth0: entered promiscuous mode
[  520.550630][T17686] br0: port 2(veth1) entered blocking state
[  520.550990][T17686] br0: port 2(veth1) entered disabled state
[  520.551336][T17686] veth1: entered allmulticast mode
[  520.552988][T17686] veth1: entered promiscuous mode
[  520.590844][T17687] br0: port 2(veth1) entered blocking state
[  520.591357][T17687] br0: port 2(veth1) entered forwarding state
[  520.592002][T17687] br0: port 1(veth0) entered blocking state
[  520.592344][T17687] br0: port 1(veth0) entered forwarding state
[  532.841743][T17723] nf_queue (17723) used greatest stack depth: 22512 bytes left
[  533.090191][   T70] br0: port 1(veth0) entered disabled state
[  533.095833][   T70] veth0 (unregistering): left allmulticast mode
[  533.096389][   T70] veth0 (unregistering): left promiscuous mode
[  533.096776][   T70] br0: port 1(veth0) entered disabled state
[  533.223309][   T70] br0: port 2(veth1) entered disabled state
[  533.235167][   T70] veth1 (unregistering): left allmulticast mode
[  533.235510][   T70] veth1 (unregistering): left promiscuous mode
[  533.235821][   T70] br0: port 2(veth1) entered disabled state