IP-MROUTE(8)

📦 version 7.3.0, in alpine 3.22, alpine 3.23, alpine 3.24, arch rolling, centos-stream 10, centos-stream 9, debian bookworm, debian trixie, fedora 43, fedora 44, nixos 26.05, nixpkgs unstable, opensuse-leap 16.0, ubuntu jammy, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

💖 NAME 💖

okay so this page is all about ip-mroute, which is the multicast routing cache management tool. it's giving "keep track of the multicast routes" energy 🦋

✨ SYNOPSIS ✨

ip mroute show [ [  to  ] PREFIX ] [ from PREFIX ] [ iif DEVICE ] [
        table TABLE_ID ]

🌸 DESCRIPTION 🌸

bestie, so mroute objects are multicast routing cache entries that get created by a user-level mrouting daemon (for example pimd or mrouted). they're literally the cached routes the daemon sets up for you 🫶

ngl there's a catch. the current interface to the multicast routing engine doesn't let you change mroute objects administratively, so the only thing you can do is display them 🙈 the good news is this limitation is supposed to be removed in the future, so we'll be able to slay even harder later 💅

✨ ip mroute show - list mroute cache entries ✨

Here's where the fun is. ip mroute show lists the cache entries, and you can filter them with these options:

  • to PREFIX (default) — the prefix that picks out the destination multicast addresses you want listed. to is optional, so you can just drop the prefix in there 🎀
  • iif NAME — the interface that multicast packets get received on 🧚
  • from PREFIX — the prefix that selects the IP source addresses of the multicast route 💜
  • table TABLE_ID — the table id that selects the multicast table. it can be local, main, default, all or a number 👑

🦋 SEE ALSO 🦋

  • ip(8) — the main ip command, obviously the bestie you need to know about next 💖

🫶 AUTHOR 🫶

Original Manpage by Michail Litvak <mci@owl.openwall.com> 🍓

and that's the whole tea, bestie! 💅✨ this page came from iproute2, version date 13 Dec 2012, and the manual page itself is IP-MROUTE(8) 🌈💀

📦 where this page comes from