[ 1400.303890][    C1] net_ratelimit: 2 callbacks suppressed
[ 1400.303897][    C1] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[ 1400.418198][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[ 1400.830963][    C3] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[ 1402.651762][    C2] TCP: request_sock_TCP: Possible SYN flooding on port 127.0.0.1:23456. Sending cookies.
[ 1457.512286][ T6491] br0: port 1(veth0) entered blocking state
[ 1457.512620][ T6491] br0: port 1(veth0) entered disabled state
[ 1457.512924][ T6491] veth0: entered allmulticast mode
[ 1457.514374][ T6491] veth0: entered promiscuous mode
[ 1457.558732][ T6492] br0: port 2(veth1) entered blocking state
[ 1457.559046][ T6492] br0: port 2(veth1) entered disabled state
[ 1457.559332][ T6492] veth1: entered allmulticast mode
[ 1457.560829][ T6492] veth1: entered promiscuous mode
[ 1457.587057][ T6493] br0: port 2(veth1) entered blocking state
[ 1457.587375][ T6493] br0: port 2(veth1) entered forwarding state
[ 1457.587823][ T6493] br0: port 1(veth0) entered blocking state
[ 1457.588111][ T6493] br0: port 1(veth0) entered forwarding state
[ 1469.560717][   T12] br0: port 1(veth0) entered disabled state
[ 1469.564635][   T12] veth0 (unregistering): left allmulticast mode
[ 1469.564951][   T12] veth0 (unregistering): left promiscuous mode
[ 1469.565233][   T12] br0: port 1(veth0) entered disabled state
[ 1469.696007][   T12] br0: port 2(veth1) entered disabled state
[ 1469.700625][   T12] veth1 (unregistering): left allmulticast mode
[ 1469.701053][   T12] veth1 (unregistering): left promiscuous mode
[ 1469.701431][   T12] br0: port 2(veth1) entered disabled state