From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: kunalv.shah@gmail.com
Cc: WireGuard mailing list <WireGuard@lists.zx2c4.com>
Subject: Re: wireguard looses internet connection intermittently.
Date: Sat, 8 Feb 2020 22:36:07 +0100 [thread overview]
Message-ID: <CAHmME9ocPawJ4amTG4JjcJga1EYKZUnEMoDvNSoJYvFqJbT3=g@mail.gmail.com> (raw)
In-Reply-To: <CAMK_KHiuWijzbna+tBpZfZm9MixXXy5iEXoVh0r3oNmrqC-Ccg@mail.gmail.com>
GCP uses an MTU of 1460 because Google's network does weird things.
That means the MTU for WireGuard should be 1380. On the GCP box, try
adding `MTU=1380` to your config and add this line to PostUp: `
; iptables -t mangle -A POSTROUTING -p tcp --tcp-flags SYN,RST SYN -j
TCPMSS --clamp-mss-to-pmtu`
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next prev parent reply other threads:[~2020-02-08 21:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-07 14:52 wireguard looses internet connection intermittently Kunal Shah
2020-02-08 21:36 ` Jason A. Donenfeld [this message]
2020-02-09 5:25 ` Kunal Shah
2020-02-09 6:47 ` Kunal Shah
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