Development discussion of WireGuard
 help / color / mirror / Atom feed
From: Mark Lawrence <nomad@null.net>
To: lejeczek <peljasz@yahoo.co.uk>
Cc: wireguard@lists.zx2c4.com
Subject: Re: MTUs go strange ways - ?
Date: Sun, 3 Apr 2022 22:14:59 +0200	[thread overview]
Message-ID: <YkoAQ2PRIcOxNE8m@b.rekudos.net> (raw)
In-Reply-To: <c8f39df3-e207-2dfb-c65d-5c6b4267f159@yahoo.co.uk>

On Sat Apr 02, 2022 at 06:41:12PM +0100, lejeczek wrote:

>1370 (server) VS 1320 (client)
>
>Could some expert or two shed more light on what & why is happening?

There is a (very small) clue in the name: Maximum *Transmission* Unit.

Routing between two IP addresses is not (necessarily) symetric: routes 
are computed independently in each direction. So there is probably a 
(1320 MTU) device somewhere inbetween which is only crossed by packets 
in the client->server direction, but not in the reverse.

-- 
Mark Lawrence

  reply	other threads:[~2022-04-03 20:16 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <c8f39df3-e207-2dfb-c65d-5c6b4267f159.ref@yahoo.co.uk>
2022-04-02 17:41 ` lejeczek
2022-04-03 20:14   ` Mark Lawrence [this message]
2022-04-04  6:55   ` Frank Volf

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=YkoAQ2PRIcOxNE8m@b.rekudos.net \
    --to=nomad@null.net \
    --cc=peljasz@yahoo.co.uk \
    --cc=wireguard@lists.zx2c4.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).