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From: Roman Mamedov <rm@romanrm.net>
To: Mike O'Connor <mike@pineview.net>
Cc: Daniel <tech@tootai.net>, wireguard@lists.zx2c4.com
Subject: Re: [Warning: DMARC Fail Email] Re: ipv6 connexion fail - ipv4 OK
Date: Sat, 28 Aug 2021 02:44:54 +0500	[thread overview]
Message-ID: <20210828024454.1766744f@natsu> (raw)
In-Reply-To: <34d4341c-98be-b754-af8e-c7097bc21aac@pineview.net>

On Sat, 28 Aug 2021 07:05:45 +0930
Mike O'Connor <mike@pineview.net> wrote:

> On a 1500 link I'm having to use 1280 to get ipv6 to successfully go 
> over a wireguard link.

Then it is not a true 1500 MTU link, something in-between drops packets at a
lower bar. Or maybe not all of them, but just UDP, for example.

But yeah, 1280 is worth trying as well, maybe Daniel has a similar issue.

As for me I am using MTU 1412 WG over IPv6 on a 1492 MTU underlying link just
fine.

> I really think wireguard should be able to fragment and send via 
> multiply UDP packets.

It is able to, as long as the underlying link MTU is set to a correct value
(i.e. where largest-sized packets actually go through, and not get silently
dropped).

-- 
With respect,
Roman

  reply	other threads:[~2021-08-27 21:46 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-25 15:25 Daniel
2021-08-26 11:14 ` Daniel
2021-08-27 16:14   ` Roman Mamedov
2021-08-27 17:16     ` Daniel
2021-08-27 21:35       ` [Warning: DMARC Fail Email] " Mike O'Connor
2021-08-27 21:44         ` Roman Mamedov [this message]
2021-08-27 21:54           ` Mike O'Connor
2021-08-30 10:24           ` Daniel
2021-08-30 12:55             ` Skyler Mäntysaari
2021-08-30 16:43             ` Roman Mamedov
2021-08-30 17:28               ` Daniel
2021-08-30 17:38                 ` Roman Mamedov
2021-08-30 17:44                   ` Daniel
2021-08-30 17:59                     ` Roman Mamedov
2021-08-31 17:50                       ` Daniel
2021-09-01 17:44                         ` Daniel
2021-09-03 13:59                       ` ipv6 connexion fail - ipv4 OK (SOLVED) Daniel

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