From: Kunal Shah <kunalv.shah@gmail.com>
To: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: WireGuard mailing list <WireGuard@lists.zx2c4.com>
Subject: Re: wireguard looses internet connection intermittently.
Date: Sun, 9 Feb 2020 12:17:44 +0530 [thread overview]
Message-ID: <CAMK_KHiOOczxThE63G2fSFQCYfsWvwQ5CLJDofoJNm0dUJdcNw@mail.gmail.com> (raw)
In-Reply-To: <CAMK_KHjEwTP9v=8rB+gNRSsrUNmsUj5QNywv3L85523Vw4DG4A@mail.gmail.com>
[-- Attachment #1.1: Type: text/plain, Size: 1426 bytes --]
I think I found the problem, there is a typo in my iptable command. While
editing with vi, I may have added additional i in the end of MASQUERADE. I
removed it and restarted it. Now I am monitoring for issues.
On Sun, 9 Feb 2020 at 10:55, Kunal Shah <kunalv.shah@gmail.com> wrote:
> Hi Jason,
>
> Thanks for your response. After the changes you suggested, It still gives
> me the same problem. Now my GCP server wireguard configuration looks like
> this.
>
> [Interface]
> Address = 192.168.1.1
> SaveConfig = true
> PostUp = iptables -A FORWARD -i %i -j ACCEPT; iptables -A FORWARD -o %i -j
> ACCEPT; iptables -t nat -A POSTROUTING -o ens4 -j MASQUERADEi;iptables -t
> mangle -A POSTROUTING -p tcp --tcp-flags SYN,RST SYN -j TCPMSS
> --clamp-mss-to-pmtu
> PostDown = iptables -D FORWARD -i %i -j ACCEPT; iptables -D FORWARD -o %i
> -j ACCEPT; iptables -t nat -D POSTROUTING -o ens4 -j MASQUERADE
> ListenPort = 51840
> PrivateKey = <private key>
> MTU=1380
>
> [Peer]
> PublicKey = <public key>
> AllowedIPs = 192.168.1.2/32
>
> On Sun, 9 Feb 2020 at 03:06, Jason A. Donenfeld <Jason@zx2c4.com> wrote:
>
>> 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`
>>
>
[-- Attachment #1.2: Type: text/html, Size: 2433 bytes --]
[-- Attachment #2: Type: text/plain, Size: 148 bytes --]
_______________________________________________
WireGuard mailing list
WireGuard@lists.zx2c4.com
https://lists.zx2c4.com/mailman/listinfo/wireguard
prev parent reply other threads:[~2020-02-14 10:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-07 14:52 Kunal Shah
2020-02-08 21:36 ` Jason A. Donenfeld
2020-02-09 5:25 ` Kunal Shah
2020-02-09 6:47 ` Kunal Shah [this message]
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=CAMK_KHiOOczxThE63G2fSFQCYfsWvwQ5CLJDofoJNm0dUJdcNw@mail.gmail.com \
--to=kunalv.shah@gmail.com \
--cc=Jason@zx2c4.com \
--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).