Development discussion of WireGuard
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From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: coder@poorlab.com
Cc: WireGuard mailing list <wireguard@lists.zx2c4.com>
Subject: Re: Fragmentation on UDP layer possible?
Date: Sun, 12 Aug 2018 23:40:59 -0700	[thread overview]
Message-ID: <CAHmME9oUWgtyBHK9WRT7oKe0Ud5ooTmGuOnkyMPRWpMBFGxV4Q@mail.gmail.com> (raw)
In-Reply-To: <CA+7UkwLpoa_n87PKghohdGc5JVpYJdjAB1a8NUpYjx35o5nPWw@mail.gmail.com>

WireGuard's socket.c calls udp_tunnel_xmit with the DF bit set to 0,
which means if the underlying endpoint's path has an MTU that is too
small, the UDP packet will simply be fragmented, not dropped.

  parent reply	other threads:[~2018-08-13  6:29 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-12 16:53 StarBrilliant
2018-08-12 19:06 ` Roman Mamedov
2018-08-12 19:55   ` StarBrilliant
2018-08-14 10:29   ` Baptiste Jonglez
2018-08-14 20:26     ` Derek Fawcus
2018-08-13  6:40 ` Jason A. Donenfeld [this message]
2018-08-13  6:53   ` StarBrilliant

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