interfaces-ipv6(5)

🦋 interfaces-ipv6(5) — IPv6 config, bestie edition 💅

okay so welcome to interfaces-ipv6(5), straight from the File Formats Manual ✨ this is the page about IPv6 config options for the interfaces(5) file format, and yes it's giving main character energy 🫶

✨ NAME ✨

interfaces-ipv6 — IPv6 configuration options for the interfaces(5) file format. periodt 💖

🫶 DESCRIPTION 🫶

The options in the ipv6 vocabulary control how IPv6 interface autoconfiguration and duplicate address detection behave — and they do it by adjusting kernel sysctl options as necessary. no cap, that's the whole description 🌸

🔥 IPV6 SPECIFIC KEYWORDS 🔥

Any keyword may be used inside an interface declaration block, but by default the system will only respond to certain keywords. iykyk 👑

• ipv6-autoconf number — autoconfigure addresses using Prefix Information in Router Advertisements. Default: 1 ✨
• ipv6-accept-ra number — accept Router Advertisements and autoconfigure using them. It also determines whether or not to transmit Router Solicitations. If and only if the functional setting is to accept Router Advertisements, Router Solicitations will be transmitted. Possible values are:
  • 0 — do not accept Router Advertisements
  • 1 — accept Router Advertisements if forwarding is disabled
  • 2 — overrule forwarding behaviour; accept Router Advertisements even if forwarding is enabled Default: 1 🔥
• ipv6-dad-transmits number — the amount of Duplicate Address Detection probes to send. Default: 1 🎀
• ipv6-optimistic-dad number — enable or disable optimistic Duplicate Address Detection. Default: 0 🦋

🌈 EXAMPLES 🌈

okay bestie, here's the example, literally:

auto foo
iface foo
  ipv6-autoconf 0

👑 SEE ALSO 👑

• interfaces(5) — go read that one too 👀

that's a wrap, bestie 🎀 — signed off on 2026-05-10 as interfaces-ipv6(5), from the File Formats Manual. mwah 💋