The emergence of k8s1.16.0 + flannel+kube-proxy-- random-fully solution

Error log kube-proxy log: I0923 10 Not using 1915 59.443659 543401 proxier.go:1729] Not using `--random- fully` in the MASQUERADE rule for iptables because the local version of iptables does not support itkubelet log: I0923 11 24 Not using 47.087532 1941 kubelet_network_linux.go:111] error log`-- random- fully` error occurs continuously according to the error log prompt The local version of iptables does not support upgrading iptables installation and upgrading iptables depends on yum install gcc make libnftnl-devel libmnl-devel autoconf automake libtool bison flex libnetfilter_conntrack-devel libnetfilter_queue-devel libpcap-devel compilation and installation of iptablesexport LC_ALL=Cwget wget https://www.netfilter.org/projects/iptables/files/iptables-1.6.2.tar.bz2tar-xvf iptables-1.6.2.tar.bz2cd iptables-1.6.2. / autogen.sh. / configure make-j4 make install # when However, you can package the iptables-related things under cd / usr/local/sbin and distribute them to other servers cd / usr/local/sbin\ cp iptables / sbin\ cp iptables-restore / sbin/\ cp iptables-save / sbin/ restart kube-proxy and kubeletservice kube-proxy restartservice kubelet restart# again to observe that there is no such log and everything is back to normal.