ip6_tnl_dev_init(9)

💖 ip6_tnl_dev_init(9) 💖

okay so bestie, welcome to the Kernel API Manual — yes it's a real manual page, yes it's giving ✨ kernel internals ✨, and yes you're gonna get it. this one is ip6_tnl_dev_init(9), and no cap, it's a little function with a big job. let's go 🌸

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✨ NAME ✨

ip6_tnl_dev_init — the initializer for all non fallback tunnel devices 💅

like, every tunnel device that isn't the fallback one? this is the function that sets it up. main character energy fr fr.

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🦋 SYNOPSIS 🦋

int ip6_tnl_dev_init (struct net_device *dev );

that's it. that's the whole vibe. one argument, returns an int 👑

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🎀 ARGUMENTS 🎀

• dev — the virtual device associated with the tunnel 🫶 literally the device that gets initialized. that's the one.

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🌈 SEE ALSO 🌈

the kernel file lives at ./net/ipv6/ip6_tunnel.c — go read it, it's iconic 💖 and here's the whole friend group, all the (9) siblings you should also go say hi to:

• ip6_tnl_lookup(9)
• ip6_tnl_bucket(9)
• ip6_tnl_link(9)
• ip6_tnl_unlink(9)
• ip6_tnl_create(9)
• ip6_tnl_locate(9)
• ip6_tnl_dev_uninit(9)
• ip6_tnl_parse_tlv_enc_lim(9)
• ip6_tnl_addr_conflict(9)
• ip6_tnl_xmit(9)
• ip6_tnl_change(9)
• ip6_tnl_siocdevprivate(9)
• ip6_tnl_change_mtu(9)
• ip6_tnl_dev_setup(9)
• ip6_tnl_dev_init_gen(9)
• ip6_fb_tnl_dev_init(9)
• ip6_tunnel_init(9)
• ip6_tunnel_cleanup(9)

bestie please actually read these if you're poking at tunnel code — iykyk, they're all up in the same file and they all matter 💀

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anyway that's the page 🎀 it came from ./net/ipv6, it's dated October 2026, and it's filed under the <hotpink>ip6_tnl_dev_init(9)</hotpink> manual page. slay, go init some tunnels, and remember: non fallback devices only 💅✨🦋