linux: switch off interface name translation and schedule its removal
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Authored by glebius on Jun 25 2026, 9:32 PM.

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melifaro
dchagin
vvd
iwtcex_gmail.com

Group Reviewers

network

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rG11bd6ade5dfd: linux: switch off interface name translation and schedule its removal

Summary

Modern Linuxes don't use ethX for almost 15 years already, see [1] and
[2]. The translation logic has always been a source of bugs and PITA.
Switch default to not translate (long due!) and schedule removal of the
code for FreeBSD 17.

[1] https://systemd.io/PREDICTABLE_INTERFACE_NAMES/
[2] https://www.freedesktop.org/software/systemd/man/latest/systemd.net-naming-scheme.html

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Repository

rG FreeBSD src repository

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Event Timeline

glebius created this revision.Jun 25 2026, 9:32 PM

Herald added a subscriber: imp. · View Herald TranscriptJun 25 2026, 9:32 PM

glebius requested review of this revision.Jun 25 2026, 9:32 PM

Harbormaster completed remote builds in B74266: Diff 180648.Jun 25 2026, 9:32 PM

The actual print looks like:

linux(4): use_real_ifnames: conversion of native interface names to ethN is not needed to emulate modern Linux. See https://systemd.io/PREDICTABLE_INTERFACE_NAMES. To be removed in FreeBSD 17

iwtcex_gmail.com accepted this revision.Jul 7 2026, 4:49 PM

This revision is now accepted and ready to land.Jul 7 2026, 4:49 PM

melifaro accepted this revision.Jul 7 2026, 4:50 PM

dchagin accepted this revision.Jul 7 2026, 5:01 PM

vvd accepted this revision.Jul 7 2026, 5:29 PM

Closed by commit rG11bd6ade5dfd: linux: switch off interface name translation and schedule its removal (authored by glebius). · Explain WhyJul 7 2026, 9:20 PM

This revision was automatically updated to reflect the committed changes.

glebius added a commit: rG11bd6ade5dfd: linux: switch off interface name translation and schedule its removal.