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_PASS,UNPARSEABLE_RELAY 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 56C05C43441 for ; Mon, 19 Nov 2018 07:32:17 +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 90E672086A for ; Mon, 19 Nov 2018 07:32:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 90E672086A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=emdete.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 690a0afd; Mon, 19 Nov 2018 07:26:17 +0000 (UTC) Received: from krantz.zx2c4.com (localhost [127.0.0.1]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 4ef8592e for ; Mon, 19 Nov 2018 07:26:13 +0000 (UTC) Received: from emdete.de (total-communication.vfnet.de [80.84.1.14]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id c8d10c14 for ; Mon, 19 Nov 2018 07:26:13 +0000 (UTC) Received: from localhost (emdete.de [local]) by emdete.de (OpenSMTPD) with ESMTPA id f336ac55; Mon, 19 Nov 2018 07:32:09 +0000 (UTC) Date: Mon, 19 Nov 2018 08:32:08 +0100 From: "M. Dietrich" Subject: Re: Traffic on port 53 fails on LTE but works on WiFi To: John , wireguard@lists.zx2c4.com References: In-Reply-To: User-Agent: astroid/v0.14-17-gcb9ebb01 (https://github.com/astroidmail/astroid) Message-Id: <1542611942.d09p50zvb2.astroid@morple.none> MIME-Version: 1.0 X-BeenThere: wireguard@lists.zx2c4.com X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1688789250799174277==" Errors-To: wireguard-bounces@lists.zx2c4.com Sender: "WireGuard" --===============1688789250799174277== Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg=pgp-sha256; boundary="=-v2GFRRJZ4NSkQq4/xbga" --=-v2GFRRJZ4NSkQq4/xbga Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi John, Quotation from John at November 18, 2018 19:55: > ... on port 53 ... do _not_ work when I connect via LTE > (Verizon supplying the data). On LTE, I am no longer able > to transfer data to/from the server peer but I can handshake > with it. Vodafone blocks UDP traffic on port 53 in LTE. > 1) What can I try on the server peer side to diagnose? I would check with tcpdump. it seems Verizon does some package inspection, maybe reducing MTU will do? > 2) Do people feel that Verizon is actively blocking the > connection on port 53? Not with Verizon but Vodafone which does a complete block - not even the handshake goes through. Not sure about the cause for that, maybe they want to control your DNS that way. Regards, M. Dietrich = --=-v2GFRRJZ4NSkQq4/xbga Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE8ECycNYHT6atlYQywVmjQWUJtykFAlvyZvkACgkQwVmjQWUJ tylDtg/9Etc+uhln3VI88ZCM0PVWa7QkEYhQm15PFDYpYnXc4XjzcTY6OgkJ9tsi bv4e4p3b53F156uW/JhehZvjV7E65gIeh7D7mhn08N7QQWHgJHjNojf8NJAcOFZd UxTcS5R7xGqldhxZ7SqYfUskZhHinLTm4AwimMOIBOHyDwaWQWB+mcJJoTR12hqv Ah2moRVb9pU+PG4ljETxsKuuaOzjRamoa+zZA1QqY5+RJezkuip72mFSgrMtMt1m S/Q+zyPy56TSd5qsvCz4x/UHxyjerWlXY8+32ikHQQEblYHCC3o5404YE/2kRNB+ h9oSV7dMmi8Pk8d8OJ1uZJXnJJuV7F7m4IkuEV1RTX9epqGhqhXJBwSRB5K58KUf 1XhPU8w31a8xBu5yEfJIIbhYNIie9Hz6PjeklwGTnruGDZ2nQVokzrb1VgJJemJs VGCl/rJ4BNZ3FQDCSjzkst0Y38bEI0RkWyVIc8NakBoexXTxcVAJENC+HFC4mpAi 8PwbVcEuR91p26VygNIe33jwopkzLpC1zNmOj094xnOKrOdAd4Hhp4nExgCl5xXP EqFihr5P4D9F9qug7S3M8+lSXKZ0UApEVmiA7/y53ef3Ko1Yr30jz4lsEsf8y/LW rNSLP1iFiPfpf6mylAAYXvuHt1QcreENHUI9abyf/wXyKdmnYEc= =jPxs -----END PGP SIGNATURE----- --=-v2GFRRJZ4NSkQq4/xbga-- --===============1688789250799174277== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ WireGuard mailing list WireGuard@lists.zx2c4.com https://lists.zx2c4.com/mailman/listinfo/wireguard --===============1688789250799174277==--