'Link' is another term for a network interface.

Metasyntactic variables are written in a shell-like syntax, $Įxamples: ip neighbor delete 192.0.2.1 lladdr 22:ce:e0:99:63:6f dev eth0Īllows you to delete a static entry or get rid of an automatically learnt entry without flushing the table. As usual, think before you type,Īnd think twice before hitting the Enter key. The authors are not liable for any damage related to using it. This document is provided 'as is', without any warranty. You can also show your support by buying the maintainer a metaphorical coffee. This document is maintained by Daniil Baturin and distributed under CC-BY-SA 4.0-a strong copyleft, free culture license.Ĭontributions are always welcome you can find the source files at /dmbaturin/iproute2-cheatsheet. It was once called a 'cheatsheet' for this reason but has long outgrown the size and scope of a cheat sheet. The document is task-centered: it tells you how to do different tasks using ip instead of listing available subcommands. The ip command controls almost all network subsystems of the Linux kernel.ĭocumenting tc in this style would be a separate big project. This document aims to provide a comprehensive but easy to use guide to the ip command. That need has been addressed by third-party documentation. The official man pages list available options but don't give almost any usage examples. Historically, documentation has been a weak side of iproute2. It's a tool that takes time to learn, but it's a good time investment for every system and network administrator who works with Linux. Will work with bridge ports, link aggregation groups, and VRF while the old approach would make you memorize the syntax of three different commands It also offers a more uniform syntax: for example, ip link set dev eno1 nomaster The ip command provides access to all those features. Recent versions of many GNU/Linux distributions no longer install them by default.Ī lot of networking features cannot be configured with the old tools and that list is only growing: VRF, network namespaces, policy-based routing, and so on. Old-style network utilities like ifconfig and route are still there only for backward compatibility. It's been a standard Linux tool since the early 2000'sĪnd has been included in every Linux distro by default for a long time. Why learn 'new' commands?įirst, iproute2 is not new at all. Iproute2 was originally written by Alex Kuznetsov and is now maintained by Stephen Hemminger. There's also tc for managing traffic policies (QoS),Īnd ss (a netstat replacement), but this document is focused on the ip part. Most of the networking functionality is unified in the ip command. Iproute2 is the Linux networking toolkit that replaced net-tools ( ifconfig, vconfig, route, arp etc.).

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