--- title: "Understanding Kubernetes Networking" url: https://daily.dev/posts/understanding-kubernetes-networking-oooxha7or source_url: https://cilium.io/blog/2026/04/25/understanding-kubernetes-networking type: article source: "cilium" published: 2026-05-04T11:20:59.745Z updated: 2026-05-04T11:21:25.698Z tags: ["linux", "kubernetes", "cilium"] reading_time: 12 upvotes: 22 comments: 1 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Understanding Kubernetes Networking **[cilium](https://daily.dev/sources/cilium)** · 12 min read · 22 upvotes · 1 comments ## Summary A comprehensive guide to Kubernetes networking fundamentals, covering the IP-per-Pod model, flat network structure, CNI plugins, and how packets move between pods on the same and different nodes. The guide explains Kubernetes service types (ClusterIP, NodePort, LoadBalancer, ExternalName, Headless), service discovery via cluster DNS, and virtual IPs. A significant portion focuses on Cilium as a CNI, detailing how it uses eBPF to replace iptables/kube-proxy for higher performance, identity-based security, transparent encryption, and observability via Hubble. Native routing vs. overlay/encapsulation modes are compared with trade-offs discussed. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@webkmsyed** · 1 upvotes > Worth it! ## Similar posts on daily.dev - [Kubernetes Networking Explained: From ClusterIP to Cilium Service Mesh](https://daily.dev/posts/kubernetes-networking-explained-from-clusterip-to-cilium-service-mesh-rhwqkcwdn) · freeCodeCamp · 4 upvotes · 0 comments - [What Is Kubernetes Networking?](https://daily.dev/posts/what-is-kubernetes-networking--1qghzles9) · Isovalent · 15 upvotes · 0 comments - [Kubernetes Networking Explained Without the Hand-Waving](https://daily.dev/posts/kubernetes-networking-explained-without-the-hand-waving-b9yscwngi) · Medium · 5 upvotes · 1 comments --- Tags: [#linux](https://daily.dev/tags/linux), [#kubernetes](https://daily.dev/tags/kubernetes), [#cilium](https://daily.dev/tags/cilium) [View this post on daily.dev](https://daily.dev/posts/understanding-kubernetes-networking-oooxha7or)