Return-path: Received: from s3.sipsolutions.net ([5.9.151.49]:34112 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750838AbdIOHXW (ORCPT ); Fri, 15 Sep 2017 03:23:22 -0400 Message-ID: <1505460197.31630.29.camel@sipsolutions.net> (sfid-20170915_092325_517327_A5D59321) Subject: Re: ROAM/CONNECT event with PORT_AUTHORIZED From: Johannes Berg To: Ben Greear , Denis Kenzior , Arend van Spriel , Arend van Spriel , Jouni Malinen Cc: Avraham Stern , linux-wireless Date: Fri, 15 Sep 2017 09:23:17 +0200 In-Reply-To: References: <1505378361.31630.2.camel@sipsolutions.net> <1505389462.31630.6.camel@sipsolutions.net> <1505416658.31630.15.camel@sipsolutions.net> <9219316a-5556-6acf-30de-e9aa65a05706@gmail.com> <6d0ad07b-ca89-19a1-d3c2-ad94915b942a@candelatech.com> <5436d106-0b4a-9158-58bf-ff84b231cd19@candelatech.com> <8a26a838-adde-08f1-5f64-c98e1d947675@candelatech.com> <756be45c-fd13-56a7-b8d4-129c4fd07dc8@gmail.com> <5ec7a05e-dfa4-37e0-b108-51ca0885b9a7@gmail.com> <038474b0-4d37-9bb7-ebf0-b92564abf5af@candelatech.com> <4aef67e2-7476-71d7-7692-cf6ed3f6c5b8@gmail.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, 2017-09-14 at 15:57 -0700, Ben Greear wrote: > > What about two APs with ssid LEDE and open-auth, each serving DHCP, > each connected to a switch that connects to a cable modem, etc. Take a cluebat to the adminstrator? It's really simple to disable DHCP on one of them, and if you properly connect them to the same switch, everything works. I've done that in a few places (not my own house because a single AP covers it well enough for me, so ...). > On initial connection to the network, the station does DHCP and gets > a response, like normal. > But, that response has a special message in it that says "you don't > need to re-do dhcp if you roam here". > User-space remembers this response for future roams... > > After that, then you skip DHCP on roam to this SSID/auth network, so > you have zero extra network overhead when roaming. That will be so much harder to configure. johannes