RARP(8)

📦
version 2.10 · 2 versions
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  • 1.60+git20181103.0eebece · ubuntu jammy
, in alpine 3.22, alpine 3.23, alpine 3.24, arch rolling, debian bookworm, debian trixie, nixpkgs unstable, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

Okay bestie, this is RARP(8) from the Linux System Administrator's Manual 💅✨ Let's get into it.

✨ NAME ✨

rarp - manipulate the system RARP table 🎀

🧚 SYNOPSIS 🧚

rarp [-V] [--version] [-h] [--help]
rarp -a
rarp [-v] -d hostname ...
rarp [-v] [-t type] -s hostname hw_addr

🚨 NOTE 🚨

Okay this one is important: this program is obsolete 💀 From version 2.3, the Linux kernel no longer has RARP support at all. If you need a replacement RARP daemon, check out ftp://ftp.dementia.org/pub/net-tools 🙈

💖 DESCRIPTION 💖

Okay so rarp is the tool that messes with the kernel's RARP table, and it's giving main character energy 👑 The main things you can do are clear out an address mapping entry or manually set one up. It also lets you dump the whole RARP table, which is lowkey super useful for debugging 🔍

🌸 OPTIONS 🌸

  • -V — Shows you which version of RARP you're running 🦋
  • -v — Makes it verbose, so it tells you everything that's happening. Chatty but in a good way 🗣️
  • -t type — When you're setting or reading the RARP table, this optional parameter tells rarp which class of entries to check. The default is ether (i.e. hardware code 0x01 for IEEE 802.3 10Mbps Ethernet. Other options include network technologies like AX.25 (ax25) and NET/ROM (netrom) 🌈
  • -a, --list — Lists the entries in the RARP table 📋
  • -d hostname, --delete hostname — Removes all RARP entries for the specified host 🗑️
  • -s hostname hw_addr, --set hostname hw_addr — Creates a RARP address mapping entry for the host hostname with its hardware address set to hw_addr. The format of the hardware address depends on the hardware class, but for most classes you can assume the usual presentation works. For the Ethernet class, that means 6 bytes in hexadecimal, separated by colons 🍓

🙈 WARNING 🙈

Some systems (notably older Suns) assume that the host replying to a RARP query can also provide other remote boot services. So please, never gratuitously add rarp entries unless you want to meet the wrath of the network administrator 😭🔥

🗂️ FILES 🗂️

  • /proc/net/rarp,

🦋 SEE ALSO 🦋

arp(8), route(8), ifconfig(8), netstat(8) 💜

👩‍💻 AUTHORS 👩‍💻

  • Ross D. Martin, <martin@trcsun3.eas.asu.edu> 🫶
  • Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org> 🫶
  • Phil Blundell, <Philip.Blundell@pobox.com> 🫶

Bye bestie! That's the whole thing from net-tools, dated 2008-10-03, RARP(8) 🌈💅

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