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A comment on GotaTun -- Mullvad's WireGuard Implementation in Rust. Parent comment

Re:GotaTun -- Mullvad's WireGuard Implementation in Rust by Hendrikto on Friday December 19, 2025 @08:01AM (#46325347)
> It's just a simple l3 udp tunnel

Wait, isn’t UDP L4? Am I missing something?

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Re:GotaTun -- Mullvad's WireGuard Implementation in Rust by eurg on Friday December 19, 2025 @08:20AM (#46325507)
Yes, but it tunnels arbitrary IP packets encapsulated in UDP.
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Re:GotaTun -- Mullvad's WireGuard Implementation in Rust by gwehrli on Friday December 19, 2025 @08:22AM (#46325549)
Wireguard is a L3 VPN that uses UDP (L4) for tunneling. Thats probably what was meant.
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