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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BA581C00140 for ; Wed, 10 Aug 2022 23:12:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231499AbiHJXMu (ORCPT ); Wed, 10 Aug 2022 19:12:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37872 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229696AbiHJXMt (ORCPT ); Wed, 10 Aug 2022 19:12:49 -0400 X-Greylist: delayed 474 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Wed, 10 Aug 2022 16:12:47 PDT Received: from mail.desertmonitor.com (desertmonitor.com [51.159.188.6]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0245377554; Wed, 10 Aug 2022 16:12:46 -0700 (PDT) Received: from [192.168.178.21] (p4fc3d4b3.dip0.t-ipconnect.de [79.195.212.179]) by mail.desertmonitor.com (Postfix) with ESMTPSA id CF8E420D46; Wed, 10 Aug 2022 23:04:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=desertmonitor.com; s=mail; t=1660172690; bh=M2U5z5fnJyyIwRacQTKLPBMbtA0XtG8nkW3I5CzC4fs=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=mEjCYZ+U5TrCJog8GYttlppMmbt/uwiHydsKDvpyHkFme3pWmfn3lNGWot4ecaeqs AhLH6r0gC3lM3OODLM4qOaGef/+ysf+mHA10WmW3E9iXJ6YrP1d/54vLYf+IPz2Bk6 lW73k/tjJKlhwLa9IDpHiIEQSa++B5B1HL7GmQniZJ2uRsS2eWHQ6mDXXAGpBWpKjs Cb2D/h2UUS+1xXaci9vKI5Kcr001YxMMdBAx7kgWCKrE+h3MDOKFEQA4A7JyIf5UiH 9mp63VIQO45CldZyHbBZzrzIvD9SG6PGJkGJ7Tajd9IP7QcEgxgC9ZK3YgcX1SLn4w JfZKQnWciJmsg== Message-ID: <1d51db1a-746c-db67-99ec-cfe5c5a43616@desertmonitor.com> Date: Thu, 11 Aug 2022 01:04:49 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: 6LoWPAN (IPv6 over BLE) neighbor discovery Content-Language: en-US To: Alexander Aring Cc: linux-wpan - ML , linux-bluetooth@vger.kernel.org References: <3a3904c4-1bf9-ef1b-3d03-b5c3e1e2f8c5@desertmonitor.com> From: Philipp Blum In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-wpan@vger.kernel.org Hi, sorry, just realized I used the info@ email ^^ > What kind of workarounds? I am curious... The radvd workaround to distribute a PD. Ideally I would like it to be as plug & and play as possible. Connecting the sensors to my router and passing down the PD automatically. At the end of the day, not everyone is a dev. > Okay, if you like you could also try [0] on bluetooth networks... I > never did it on bluetooth. Although I think it does not make any sense > because it makes only sense on a mesh network and so far I understand > this is the difference between bluetooth 4.x vs 5.x/upwards and > currently there is no mesh bluetooth 6lowpan support here (but mesh > bluetooth on link-layer is there). It's a star topology. I guess what > you could try out is ndisc-proxy setup which is mostly the same but no > routing involved and they share the same prefix. Btw, I am on Bluetooth 4.2. I had a hard time to even find non audio only Bluetooth 5.x USB sticks. Yes, it's only star topology so far. Even though, from my understanding, you could theoretically run a RPL network behind it. There are more powerful MCUs that would be able to act as a RPL root. Even though it probably would be better to use the linux border router as root. Puts less pressure on the sensor nodes. I am not familiar with ndisc-proxy. If you could point me to some resources, that would be very helpful. Going to take a look into it. Sharing the same prefix would be fine for now, since I only run it in a star topology anyway. RPL should be, from my understanding, also work on BLE. RIOT allows three concurrent connections for BLE, as I remember. I don't really understand why rpld only works in a mesh network. When it runs on 6LoWPAN, it should also run on BLE, or am I missing something? best regards Philipp