From owner-freebsd-net@FreeBSD.ORG Mon Jul 28 06:34:03 2014 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 51B7DF7C; Mon, 28 Jul 2014 06:34:03 +0000 (UTC) Received: from web01.jbserver.net (web01.jbserver.net [IPv6:2a00:8240:6:a::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 127F52491; Mon, 28 Jul 2014 06:34:02 +0000 (UTC) Received: from [2001:5c0:1000:a::e83] by web01.jbserver.net with esmtpsa (TLSv1:DHE-RSA-AES128-SHA:128) (Exim 4.82) (envelope-from ) id 1XBeVM-0003NQ-63; Mon, 28 Jul 2014 08:33:52 +0200 Message-ID: <53D5DBD2.9050107@gont.com.ar> Date: Mon, 28 Jul 2014 01:12:50 -0400 From: Fernando Gont User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: =?UTF-8?B?56We5piO6YGU5ZOJ?= , Loganaden Velvindron Subject: Re: IPv6 nodeinfo default behaviour References: <20140720090410.GA7990@mx.elandsys.com> <20140722170150.GA971@mx.elandsys.com> <20140722193521.GA20775@mx.elandsys.com> In-Reply-To: X-Enigmail-Version: 1.5.2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: FreeBSD Net , bz@freebsd.org, George Neville-Neil X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Jul 2014 06:34:03 -0000 On 07/22/2014 04:38 PM, 神明達哉 wrote: > >>> usually subjective, and different people may have different opinions. >>> Personally, I often find "ping6 -w" quite useful for debugging >>> purposes, and I think limiting its use to link-local by default gives >> >> Agreed. Perhaps we should enable it only when we need to debug. >> >>> a reasonable level of defense (and, disabling it by default would >>> reduce the usability pretty much). So I'd rather prefer keeping the >>> current default, but, again, other people may have a different >>> preference. > > To be clear, in case I wasn't: in my opinion it would become useless > for debugging unless it's enabled by default, so I would like it to be > (kept) enabled by default (note that it's already limited to > link-local by default). But I understand YMMV. While node information message can be interesting at times, since they are only supported in BSDs and can only be used when on-link, it's not a debugging mechanism you can rely on. As a result of that, my 2cents would be "disable them by default". If in your particular setup woul'd benefit from them, you can always override such default on system installation. Thanks, -- Fernando Gont e-mail: fernando@gont.com.ar || fgont@si6networks.com PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1