What is the access principle when `iptables` mode is used by `kube-proxy`?

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The access principle when iptables mode is used by kube-proxy is that every Node in the Kubernetes cluster maintains its own iptables rules that redirect the traffic to the appropriate Pods. This means that each Node has a local view of the network and is able to route traffic without having to query a central controller. This makes the networking more scalable and fault-tolerant, as failure of a single Node does not affect the routing of the traffic.