From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from uplift.swm.pp.se (ipv6.swm.pp.se [IPv6:2a00:801::f]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 7E93F3CB35 for ; Fri, 19 Oct 2018 15:04:41 -0400 (EDT) Received: by uplift.swm.pp.se (Postfix, from userid 501) id 0D7E1B0; Fri, 19 Oct 2018 21:04:40 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=swm.pp.se; s=mail; t=1539975880; bh=dtJtqUWBQXlOZeeqkkZu62IFVMMhAb5tcK2d/rJ3Hyg=; h=Date:From:To:cc:Subject:In-Reply-To:References:From; b=jYCBSN3/rc/6rHF0OLLsGs7xU2dBwK/7tnERc9HbBytTo3w4C9kGGpE8oYJyCcYL6 H+W2dRhtdNeUJg8uhjg+IuxsJbPIKvJEhpG2If1/aYKeNoT9eqdChMcDljXPlHB8X4 E50xiIzmT6ePxToHxS4X6XMuT65QJESKQmyg27KI= Received: from localhost (localhost [127.0.0.1]) by uplift.swm.pp.se (Postfix) with ESMTP id 0BBDFAF; Fri, 19 Oct 2018 21:04:40 +0200 (CEST) Date: Fri, 19 Oct 2018 21:04:40 +0200 (CEST) From: Mikael Abrahamsson To: Rich Brown cc: cerowrt-devel In-Reply-To: Message-ID: References: User-Agent: Alpine 2.20 (DEB 67 2015-01-07) Organization: People's Front Against WWW MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Subject: Re: [Cerowrt-devel] Wicked OT: 240.0.0.0/4 netblock X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Oct 2018 19:04:41 -0000 On Fri, 19 Oct 2018, Rich Brown wrote: > MY QUESTION: I have always believed that this netblock is not routable. > Is this true? (A simple yes/no answer would be sufficient.) Most host stacks do not handle 240/4 correctly. Getting this working outside of a very closed and controlled network is not feasible. You would need to validate all devices to support this 240/4 block that most IP stacks today will not use. -- Mikael Abrahamsson email: swmike@swm.pp.se