NG_HUB(4)

📦 version 15.1, in freebsd 14.5, freebsd 15.1, nixpkgs unstable

💅 ng_hub(4) 💅

from the Kernel Interfaces Manual, bestie 🫶

✨ NAME ✨

ng_hub — packet distribution netgraph node type. That's the whole vibe: packets get distributed, netgraph-style 💖.

🌸 SYNOPSIS 🌸

#include <netgraph/ng_hub.h>

🦋 DESCRIPTION 🦋

okay so the hub node type provides a simple mechanism for distributing packets over several links. Packets received on any of the hooks are forwarded out the other hooks — literally just passed along. And packets are not altered in any way, no cap. It's giving “pure distribution, zero edits” ✨.

🎀 HOOKS 🎀

A hub node accepts any request to connect, regardless of the hook name, as long as the name is unique. So yes bestie, come through — but pick a unique name 💅.

👑 CONTROL MESSAGES 👑

This node type supports the generic control messages, plus the following:

  • NGM_HUB_SET_PERSISTENT (setpersistent) — this command sets the persistent flag on the node, and takes no arguments — zero, zilch, nada 🫶.

🔥 SHUTDOWN 🔥

This node shuts down upon receipt of a NGM_SHUTDOWN control message, or when all hooks have been disconnected. Setting the persistent flag via a NGM_HUB_SET_PERSISTENT control message disables automatic node shutdown when the last hook gets disconnected — so it doesn't ghost you when the last hook dips 💀✨.

🌈 SEE ALSO 🌈

iykyk, go check these out too:

⭐ HISTORY ⭐

The ng_hub node type appeared in FreeBSD 5.3. That's the origin story, periodt 🦋.

💖 AUTHORS 💖

Ruslan Ermilov <ru@FreeBSD.org> — thank you bestie 🫶.

okay that's the tea ☕ — this page comes from the Debian edition, dated May 5, 2010, and it's NG_HUB(4), periodt 💅✨

📦 where this page comes from