From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FROM autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 18497 invoked from network); 4 Mar 2021 10:17:37 -0000 Received: from 1ess.inri.net (216.126.196.35) by inbox.vuxu.org with ESMTPUTF8; 4 Mar 2021 10:17:37 -0000 Received: from mail-ed1-f47.google.com ([209.85.208.47]) by 1ess; Thu Mar 4 05:09:59 -0500 2021 Received: by mail-ed1-f47.google.com with SMTP id w9so408479edc.11 for <9front@9front.org>; Thu, 04 Mar 2021 02:09:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-transfer-encoding; bh=G043WZENVfUwLsE08YpU4KcRu/s9id7dS3r4UsgBmZ4=; b=Zedb5Bt2MB5jKLzSnn2nXwyRnFwWa+bJm3s2nj3Lkot8BC4z/31GXsCBuqy90UlXm+ 1KAzfn7gR3wZTDORIU/k/TiQEQZ+oA//EMfSDXxlMm3lyHGouoxI9KW5Ha6VPnFYgIdu So4A9tcN3mpRaMNOT+o00lm0T+pbRYJ2k6CycKdTcAt1byuUYK9K55KkxDFqtYZrf8ZW 17LZBF7WXNeuJtYsy8e0Djoz9EV0lhKkS/nkhGAdfcy3Vde80/MOQFYKnNFaUH5Ehicx R2Hu5tQzcx5Lmez0nEbhE6uDchvg1g3nJdoWLIZd9rbQ3aiWESM3pEa25P5IYYD4DUSi ZkBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:content-transfer-encoding; bh=G043WZENVfUwLsE08YpU4KcRu/s9id7dS3r4UsgBmZ4=; b=f3zvAgyE2sLOjK1G+YqJV7OPKJz56SVQLqrYlXnN8/VCtnOVUK7cqd1wEsLM9CsY/s tBVvr8826MvnvckdoJ1qD6ruIqaFdYRXFpPKtPv4GoZOBnGHmVKJL0MxJXBmSz4d0ruO 000/Lormc93f6ebzp7Wbc20B3q1vGhj/pO1T95oIgKiE1xlBlcfZcOvnO+qbI/GAomlu nq9kMYIIXofbf6AamV6yigffv4ILodCx4bqwaOSELKtom0d2jOg5RWmPUVdr++9wAm2E +BxsHFvdkX+dG30+1Dd2gphwNoN6xqgJqWVuNhvR9CInmJZ8T5b5vl7CdWXrKWLLIurh XeFw== X-Gm-Message-State: AOAM532ISPbHqLqaO8fHUVH9jZjcaHArA6OI7QHqToXxeB8OtY0MfY0C ThyXinAcq96hl0iMu57riErLPGCUOWNepvl5HqcGLutu3e4= X-Google-Smtp-Source: ABdhPJyPW8AH2ErGUXoZi2lXDP7EXVDw+bIY3MUDS7XPkgy9K9ZKnNDXKKM4i/J653GyD2s4rM0l1fQ1Qhz1mZMHcOw= X-Received: by 2002:a05:6402:149:: with SMTP id s9mr3466477edu.247.1614852590329; Thu, 04 Mar 2021 02:09:50 -0800 (PST) MIME-Version: 1.0 Received: by 2002:a17:906:4486:0:0:0:0 with HTTP; Thu, 4 Mar 2021 02:09:49 -0800 (PST) In-Reply-To: <26A8DA0D-848E-4C24-AACC-BBBB613FFDC8@me.com> References: <9EAB7D15-0A8B-4B7C-87FA-D37B0DA0E168@me.com> <3238f626-0230-be85-acf7-4887e67a5e0f@typed-hole.org> <26A8DA0D-848E-4C24-AACC-BBBB613FFDC8@me.com> From: hiro <23hiro@gmail.com> Date: Thu, 4 Mar 2021 11:09:49 +0100 Message-ID: To: 9front@9front.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable List-ID: <9front.9front.org> List-Help: X-Glyph: ➈ X-Bullshit: module rich-client framework Subject: Re: [9front] rpi4 wifi USB dongle Reply-To: 9front@9front.org Precedence: bulk I can tell you generally. An ethernet client is a computer with a mac address. Given you have a group of M clients and another group of N clients and you want to connect them, plug the M clients into a switch with M+1 ports on one side and the N clients into a switch with N+1 ports on the other side, then use the remaining port and a long cable to connect them together. Imagine now the M-AP is a wifi router, and you want to connect it to the N-AP over wifi. but here when wifi comes into play not every client is the same. you have many wifi stations and just one wifi *ap*, if we make M-AP the wifi AP, you can bridge all the M clients just fine. that works on AP side. But if you want to bridge a wifi *station* on the other side, you can not. a station can only bridge N=3D1 mac addresses into a wifi. So, with wifi, either M or N has to be 1. Useless, no? We have some code in 9front called mat damon, which is like NAT, but for MAC addresses instead of IP addresses. This way one mac address can hide all the N other mac addresses and translate between them. But that's obviously a layer violation, a stupid hack that only exists due to the limitation of wifi. On 3/4/21, Daniel Morandini wrote: >> BPL + ethernet maybe? At least you don't have to drill a hole. >> powerline is really bad > BPL is Broadband Power Line right? This house is wired with very > old copper wires (not twisted), I bet I would not get much out of > it, but thanks for the suggestion. > >> Richard Miller's plan 9 image supports wifi on these machines. >> As of now there is no wifi dongle support in 9front. You can use an olde= r >> Android phone's usb tethering (no cell service needed) with nusb/ether i= n >> rndis mode. >> i used to use an external wifi bridge over ethernet > These are all valuable options, thank you, but hiro is making me think: > >> keep in mind wifi cannot really bridge more than one IP (sadly the > wifi src/destination fields cannot be mapped to ethernet mac addresses > properly). > Could you please expand this a little bit more (possibly with > references)? I=E2=80=99ve attached to this email a little handmade diagr= am > of my home setup. The line tagged with =E2=80=9Clong eth cable=E2=80=9D = was the > one that I wanted to replace with a wireless connection to some > receiver device that eventually ethernets with the switch, but still > I would have had to check what 802.11 is allowing me to do. What > you tell makes me think that that protocol in this setup in that > position is not really a viable option right? > >> drilling holes is not so bad > Indeed, this is what I=E2=80=99m going to go for :D > > Thank you very much for your help so far, > dan > >