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=-3.8 required=3.0 tests=BAYES_00, 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 DECF9C433ED for ; Sat, 10 Apr 2021 16:13:02 +0000 (UTC) Received: from lists.zx2c4.com (lists.zx2c4.com [165.227.139.114]) (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 063F2601FF for ; Sat, 10 Apr 2021 16:13:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 063F2601FF Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lonnie.abelbeck.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=wireguard-bounces@lists.zx2c4.com Received: by lists.zx2c4.com (ZX2C4 Mail Server) with ESMTP id a07474b9; Sat, 10 Apr 2021 16:13:00 +0000 (UTC) Received: from ibughas.pair.com (ibughas.pair.com [209.68.5.177]) by lists.zx2c4.com (ZX2C4 Mail Server) with ESMTPS id 06d76c76 (TLSv1.3:AEAD-AES256-GCM-SHA384:256:NO) for ; Sat, 10 Apr 2021 16:12:58 +0000 (UTC) Received: from ibughas.pair.com (localhost [127.0.0.1]) by ibughas.pair.com (Postfix) with ESMTP id 4D6DB1E3067; Sat, 10 Apr 2021 12:12:57 -0400 (EDT) Received: from [10.4.1.148] (wsip-70-184-211-81.om.om.cox.net [70.184.211.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ibughas.pair.com (Postfix) with ESMTPSA id 2C7F41E3064; Sat, 10 Apr 2021 12:12:57 -0400 (EDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.17\)) Subject: Re: T-Mobile 4G/5G CGNAT vs WireGuard tunnel jitter From: Lonnie Abelbeck In-Reply-To: <20210410205951.14f93435@natsu> Date: Sat, 10 Apr 2021 11:12:56 -0500 Cc: WireGuard mailing list Content-Transfer-Encoding: quoted-printable Message-Id: <15541873-A1D6-417E-A3B7-121DE0D90F22@lonnie.abelbeck.com> References: <0BDB7408-22AC-4643-975E-1B5AC3AFADD9@lonnie.abelbeck.com> <20210410205951.14f93435@natsu> To: Roman Mamedov X-Mailer: Apple Mail (2.3445.104.17) 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" > On Apr 10, 2021, at 10:59 AM, Roman Mamedov wrote: >=20 > On Sat, 10 Apr 2021 10:27:23 -0500 > Lonnie Abelbeck wrote: >=20 >> I have been testing the T-Mobile Home Internet (4G/5G fixed wireless) = service to a Linode VM via WireGuard. >>=20 >> The TMHI service uses CGNAT plus an additional NAT in their = modem/gateway with a MTU of 1420, so WireGuard is configured with a 1340 = MTU. >=20 > Do they provide IPv6? I see mentions that yes, but with incoming = connections > blocked. Might still work for WG. Hi Roman, TMHI uses IPv6 for their CGNAT, but AFAIK their current firmware does = not support IPv6 on the ethernet ports (I disable their WiFi). But if (when) they support IPv6, establishing the WireGuard tunnel over = IPv6 would be great, and back to a 1420 MTU for WireGuard. Lonnie