From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 934F5C282DC for ; Sun, 2 Jun 2019 10:39:39 +0000 (UTC) Received: from krantz.zx2c4.com (krantz.zx2c4.com [192.95.5.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 359C2275D9 for ; Sun, 2 Jun 2019 10:39:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 359C2275D9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=53c70r.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=wireguard-bounces@lists.zx2c4.com Received: from krantz.zx2c4.com (localhost [IPv6:::1]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 9ec286b7; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: wireguard-bounces@lists.zx2c4.com Sender: "WireGuard" Hi again, i just noticed my default interface has MTU 1348 so when i am connected to this one and use wg-quick it will break. Disconnecting from it first and than using wg-quick will set higher MTUs on the WireGuard interface so it wont break for ipv6. Greetings, 53c70r On 6/2/19 12:27 PM, Silvan Nagl wrote: > Hi, > > as i already mentioned the problem persists on master branch for me. > > Greetings, > > 53c70r > > On 6/2/19 8:32 AM, XRP wrote: >> 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.) >> > _______________________________________________ > WireGuard mailing list > WireGuard@lists.zx2c4.com > https://lists.zx2c4.com/mailman/listinfo/wireguard _______________________________________________ WireGuard mailing list WireGuard@lists.zx2c4.com https://lists.zx2c4.com/mailman/listinfo/wireguard