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=-0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 97CDCC10DCE for ; Mon, 16 Mar 2020 00:23:16 +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 18790205ED for ; Mon, 16 Mar 2020 00:23:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="Tl4dZ5nJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 18790205ED Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gmx.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=wireguard-bounces@lists.zx2c4.com Received: by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 3aa33528; Mon, 16 Mar 2020 00:14:28 +0000 (UTC) Received: from mout.gmx.net (mout.gmx.net [212.227.15.19]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTPS id 0719832d (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256:NO) for ; Sat, 14 Mar 2020 19:50:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1584215777; bh=yz26wVJ7fd4RoSQ/F1G14Gavtnr6KjjfpNaBvpGwjxw=; h=X-UI-Sender-Class:Date:From:To:Subject:In-Reply-To; b=Tl4dZ5nJwu3h4+c54xnBL6uvVBfySKEus5HS0Elrp67/1h0TIy58q7Nm/14iAnd+W 6IQv1dyHA5CDbfGMH3QoszwRlsTCtMGjDzISl1DnxLp+k5BJNWcPgNPBiDQSHwM+B5 Z1FrfoeRsp4W16hNmP0u10ezLZ55Huoogqhiysz8= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from gandalf.arda.local ([93.164.92.140]) by mail.gmx.com (mrgmx005 [212.227.17.184]) with ESMTPSA (Nemesis) id 1MQMuR-1izmkK1K09-00MP9s for ; Sat, 14 Mar 2020 20:56:17 +0100 Date: Sat, 14 Mar 2020 20:56:16 +0100 From: Kent Friis To: wireguard@lists.zx2c4.com Subject: Re: WireGuard connecting hosts WAN->LAN Message-Id: <20200314205616.5253f6439e8b76525d82539f@gmx.com> In-Reply-To: X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.31; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:rpiBGAsDXdPW3LKg0iz7dba9K8yZUjzUNLvhYDX8j9MNpsqYojY Ly1Nay7Wu1DBUxyVvzywOPd2OdRW3W1x9wEs1PzUE7Xc6TqlkR34iGvT544STOBMB287UVg o3T5RY84WChcI5ue6NUETrw8bu52OFZgNkE6ZcZijo8R2giz13SBywZLvXO89AJRWkML0Mv gdG0aG6UVd37KRjZHJEfw== X-UI-Out-Filterresults: notjunk:1;V03:K0:qRMcdjc1DA8=:ddTdzr0VFafKsqMDpV7eJw LccS8WqtxQA2+KZjCo4+1VBWMn4PF5fEhK8lazRrvWxzzLKyCKshg6KoNu3LNGIGtAg5zdDq/ mKdL9NfJrV+Fi5oSgPc2i2fOB52l21AbR0J2mGr7e6EjKSHr3xIwPvlErlHaBi3a7C57FBLvx sWd1bysyazwzTvuZ2J/m5CV5Vfli9r2YyUyGLumfrxZPgTlngw69pKN7gqCD6HjdM3igjpiI4 RjSgR+IgN6AKPc3MCdMakln+ucLu+6j4Fc2tjWNP7V4JRH1UVsOe+OWmLXCWiLev0Grc3+NY3 iA4yYR0AdvNWsPi/nCSgsCwXmikjEnRBWz4L72R2z5kYbhKab8pTwI7o3EYMaqgthtwV/9LR5 hXkDtEUMZo6FaNJ9Ik9KCY7J+Kv0wG9CumUaVunLikrXalEc3kcrN4e1y4a+O2LFJt8gVDfte vgpwm6KEB1HjkssnKUHSmudkzUe3ENVr8Q4pD6TqNRspljpcomNEPiFHnKWvmPGPtjK6dL8l1 4NYspSWHt756oSSwXOgf0rH7+MC2cggL+YVtIZoLD90tYHLYuVFfk8MBlAXSmFAS0j/d4zD7l U2hqFLZAykQT8Vzu8WlMjBJ4TaahTn4t5NVV/jcyQI5kv+Y1dyNDyFLH5JwbFWtRafGcRjWwd eeeqpukp+pAh7AOlr80TKyXyVbC/7yvBevYCzJog6H7CLcK97Nu1DjmS19VCqXZXI+lN4ZtJH UtfwByTCcws3KhBV+EksoOUoMMg8Ekrg4ZJ0dNSgoyyMH4E+iUQucOK8x3lXlKEtP2JbXiYPV mH773C236gi/ysrLUmeSrWmO50k7ndvmiZKZysKN3+BKEgPuesj3fZvmnYF0/UJrAxlt0mJL+ bfwlpnc96KXZxJOLLWLj4lVYLP8w+15lqN90VVad3S4BXnyQn1G++MNU2sb9JfXhMt5ju2p38 /9psVOKv0vq0qxD8Spklh34ALqEzK+UhjhM9rv2//Jl//ugaTdPJu214va8AW91f0Ph7G9hUE 6mxgY8uXGXLtCXq3BJETC8EZSa2XrQVqSrnuiFzKf4DAclqxwp2rpXBB7aIdALqvLbKJlQc/N rYuh4m/xGt2Lbr09iZyk8wpGd3X0NPjlnvPpCHD/KGjXHWcPO9WvyIyoILkkxMBEaOkoBCgFP 3+6QWf3FxFSLNsHLzoDsBKw4dwq97//m3LQrjCagMFcoiUovzU7SvyPIPz0vlQtQ4Rk3v2w4f KwDhtjSkzLYsj3PF5 X-Mailman-Approved-At: Mon, 16 Mar 2020 01:14:22 +0100 X-BeenThere: wireguard@lists.zx2c4.com X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: wireguard-bounces@lists.zx2c4.com Sender: "WireGuard" > Scenario: > A = internet (WAN) host (WireGuard IP 10.1.1.3) > B = OpenWRT router (WireGuard IP 10.1.1.1) > C = LAN host (WireGuard IP 10.1.1.2) What you have been told is correct for the case of A connecting to C. there is no way for A to reach the Wireguard port on C without B forwarding that port. However, if you can turn it around and have C connect to A, assuming the wireguard port on A is accessible from the internet, C will be able to connect to A. Once the connection is established, traffic will flow both ways.