[WireGuard] Header / MTU sizes for Wireguard

Roman Mamedov rm at romanrm.net
Thu Aug 24 13:21:11 UTC 2023

On Thu, 24 Aug 2023 08:50:20 -0400
Saint Michael <venefax at gmail.com> wrote:

> This is the Achiles' heel of Wireguard. It reduces the MTU too much. Other
> tunneling techniques use a much larger MTU. I use Mikotik routers and one
> of the supported tunnels goes up to 1472. Some apps requiere a large MTU.
> Why Wireguard requieres so much space, so to speak?

Because it uses encryption, and each packet is also cryptographically signed.

I believe the other tunnels you have in mind will transfer data in plaintext

With respect,

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