Linux Networking Basics: Overview of the ip Command (Linux网络基础：ip指令概览)
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A Zhihu Blog about the Linux ip command family, with a focus on ip rule and ip route for policy routing and packet path control.
This article introduces common ip command objects such as link, address, route, and rule, then explains how iptables, ip rule, and ip route cooperate when a packet is processed. It also demonstrates how to use policy routing to support SSH access through both wired and Wi-Fi interfaces.