From: XRP <xrp@airmail.cc>
To: Silvan Nagl <mail@53c70r.de>,
WireGuard mailing list <wireguard@lists.zx2c4.com>
Subject: Re: wg-quick up automation fails
Date: Sun, 02 Jun 2019 08:32:52 +0200 [thread overview]
Message-ID: <49c02779bfc7c9109e6083d24b88244bb3411ef1.camel@airmail.cc> (raw)
In-Reply-To: <b46b6815-347b-1410-51df-db52c7386313@53c70r.de>
On Sun, 2019-06-02 at 01:49 +0200, Silvan Nagl wrote:
> G'day,
>
> i recently upgrade WireGuard to the latest shipped Debian version
> (0.0.20190406-1) and noticed my wg-quick created interface did not
> come
> up as usual anymore. (Also tried the git master branch) I tried to
> single command trough wg-quick's automation to reproduce the error;
>
> automatic:
>
> [#] ip link add Y type wireguard
> [#] wg setconf Y /dev/fd/63
> [#] ip address add X.X.X.X/32 dev Y
> [#] ip address add fc00::XXXX/128 dev Y
> [#] ip link set mtu XXXX up dev Y
> [#] resolvconf -a tun.Y -m 0 -x
> [#] wg set Y fwmark 51820
> [#] ip -6 route add ::/0 dev Y table 51820
> RTNETLINK answers: No such device
> [#] resolvconf -d tun.Y
> [#] ip link delete dev Y
>
> manual:
>
> > ip link add Y type wireguard
> > wg setconf Y <(wg-quick strip /etc/wireguard/Y.conf)
> > ip address add X.X.X.X/32 dev Y
> > ip address add fc00::XXXX/128 dev Y
> > ip link set mtu 1268 up dev Y
> > resolvconf -a tun.X -m 0 -x
> > wg set Y fwmark 51820
> > ip -6 route add ::/0 dev Y table 51820
>
> < RTNETLINK answers: No such device
>
> (MTU may be to low here so i set it higher again)
>
> > ip link set mtu 1420 up dev Y
> > ip -6 route add ::/0 dev Y table 51820 (works now)
>
> breaks up @ this point because of error handling...
>
> Additionally it could be possible the MTU isn't set correctly.
I had a similar problem where I got a "RTNETLINK answers: No such
device" error. After that I tried to use the wg-quick version in the
master branch and that fixed my problem. I hope that helps.
(MTU for IPv6 must be 1280 bytes at least.)
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next prev parent reply other threads:[~2019-06-06 9:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-01 23:49 wg-quick up automation fails Silvan Nagl
2019-06-02 6:32 ` XRP [this message]
2019-06-02 10:27 ` Silvan Nagl
2019-06-02 10:38 ` Silvan Nagl
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