Tunneling protocol in WireGuard

[saeidscorp]

Hi Sahil,
The packets produced by wireguard are simple ip packets containing a udp header which together specify the ip address and udp port number the packet should be handed to. Wireguard is listening on that port and receives the full ip packet. The contents of the udp part inside it are a special security header (specially designed for wireguard) plus encrypted data of original ip packet.
So no ESP, AH, or anything devised in the past. It uses a special header, custom made for wireguard. Head over to wireguard.com if you want to know more about the protocol.
Saeid,
-------- Original message --------From: wireguard-request at lists.zx2c4.com Date: 01/08/2017  14:30  (GMT+03:30) To: wireguard at lists.zx2c4.com Subject: WireGuard Digest, Vol 17, Issue 2 
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Today's Topics:

   1. Re: Tunneling protocol in WireGuard (Sahil Gupta)
   2. Any tool to study the wireguard effect on Bandwidth, memory
      and processing power. (Sahil Gupta)


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Message: 1
Date: Tue, 1 Aug 2017 02:29:18 -0400
From: Sahil Gupta <sg5414 at rit.edu>
To: "Jason A. Donenfeld" <Jason at zx2c4.com>
Cc: WireGuard mailing list <wireguard at lists.zx2c4.com>
Subject: Re: Tunneling protocol in WireGuard
Message-ID:
	<CAA8CD9vq6_TGdTafb0YAs+ZQFtR6W24xSSaTVEmDjdPDQuHK4w at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

If we go in the history? of tunneling protocols.
PPP protocol get tunnel by PPTP using GRE tunneling protocol.
L2F by CISCO uses L2F header.
L2TP by Microsoft uses L2TP header.
IPSec uses either ESP,AH or combination of both depending on kind of
security required then attach the other IP header.

So I was wondering if there is some header between IPv4 and IPv6 which
define some control information about tunneled packet.
Or just IPv6 just after IPv4 header and vice versa.
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Message: 2
Date: Tue, 1 Aug 2017 02:42:59 -0400
From: Sahil Gupta <sg5414 at rit.edu>
To: WireGuard mailing list <wireguard at lists.zx2c4.com>
Subject: Any tool to study the wireguard effect on Bandwidth, memory
	and processing power.
Message-ID:
	<CAA8CD9vRACxwE=XWWg_bgbjuwu0NXMYw-FTBq_grxK2Yy=VQqA at mail.gmail.com>
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Is there any tool which helps to study the effect on using WireGuard VPN on
different OS(including embedded)?

Regards
Sahil Gupta
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