Development discussion of WireGuard
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From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: Riccardo Berto <riccardo@rcrdbrt.com>
Cc: WireGuard mailing list <wireguard@lists.zx2c4.com>
Subject: Re: Troubleshooting WireGuard connections
Date: Sat, 14 Apr 2018 03:26:18 +0200	[thread overview]
Message-ID: <CAHmME9oFYswr1KjBGiP+2iMHDGYmZhpv_SovCMT3xxMMErK19A@mail.gmail.com> (raw)
In-Reply-To: <2c17e7ba2590353afa04fc1619d726c2@rcrdbrt.com>

Hi Riccardo,

Based on those tcpdump timestamps, it looks like the handshake
response happens nearly immediately after the handshake initiation.
Yet from your description, it appears only after many moments. In my
experience, tcpdump blocks like this when it has to do too many DNS
resolutions and the resolver is slow. You might get a more accurate
picture of what is going on if you additionally pass `-n` to tcpdump,
which should make the packets appear more instantaneously.

Jason

  reply	other threads:[~2018-04-14  1:12 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-13  9:23 Riccardo Berto
2018-04-13 21:54 ` Jason A. Donenfeld
     [not found]   ` <33d0fd1f4c60919b98b50e2b9d04fe78@rcrdbrt.com>
2018-04-13 22:36     ` Riccardo Berto
2018-04-14  1:26       ` Jason A. Donenfeld [this message]
2018-04-14  7:56         ` Riccardo Berto
2018-04-14 23:19           ` Jason A. Donenfeld
2018-04-20 13:57           ` Riccardo Berto
2018-04-20 19:37             ` Jason A. Donenfeld
2018-04-20 19:39               ` Jason A. Donenfeld
2018-04-20 19:51                 ` Jason A. Donenfeld
2018-04-20 20:31                   ` Riccardo Berto
2018-04-25 11:46                     ` Riccardo Berto
2018-04-25 11:51                       ` Jason A. Donenfeld
2018-04-25 12:40                         ` logcabin
2018-04-25 22:56                         ` Riccardo Berto
2018-04-26  9:52                         ` Riccardo Berto
  -- strict thread matches above, loose matches on Subject: below --
2018-04-12  9:09 Riccardo Berto
2018-04-12 20:57 ` Eric Light

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