From owner-freebsd-net@freebsd.org Wed Jun 19 16:15:18 2019 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5E4EB15BD916; Wed, 19 Jun 2019 16:15:18 +0000 (UTC) (envelope-from freebsd-rwg@gndrsh.dnsmgr.net) Received: from gndrsh.dnsmgr.net (br1.CN84in.dnsmgr.net [69.59.192.140]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 888EA6CE6D; Wed, 19 Jun 2019 16:15:17 +0000 (UTC) (envelope-from freebsd-rwg@gndrsh.dnsmgr.net) Received: from gndrsh.dnsmgr.net (localhost [127.0.0.1]) by gndrsh.dnsmgr.net (8.13.3/8.13.3) with ESMTP id x5JGFFfJ018891; Wed, 19 Jun 2019 09:15:15 -0700 (PDT) (envelope-from freebsd-rwg@gndrsh.dnsmgr.net) Received: (from freebsd-rwg@localhost) by gndrsh.dnsmgr.net (8.13.3/8.13.3/Submit) id x5JGFFt7018890; Wed, 19 Jun 2019 09:15:15 -0700 (PDT) (envelope-from freebsd-rwg) From: "Rodney W. Grimes" Message-Id: <201906191615.x5JGFFt7018890@gndrsh.dnsmgr.net> Subject: Re: Eliminating IPv6 (?) In-Reply-To: <24170.1560891451@segfault.tristatelogic.com> To: "Ronald F. Guilmette" Date: Wed, 19 Jun 2019 09:15:15 -0700 (PDT) CC: freebsd-net , FreeBSD Questions Mailing List X-Mailer: ELM [version 2.4ME+ PL121h (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII X-Rspamd-Queue-Id: 888EA6CE6D X-Spamd-Bar: ++ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [2.60 / 15.00]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; NEURAL_SPAM_SHORT(0.53)[0.528,0]; IP_SCORE(0.04)[ip: (0.14), ipnet: 69.59.192.0/19(0.07), asn: 13868(0.05), country: US(-0.06)]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; DMARC_NA(0.00)[dnsmgr.net]; AUTH_NA(1.00)[]; NEURAL_SPAM_MEDIUM(0.25)[0.246,0]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; MX_GOOD(-0.01)[cached: gndrsh.dnsmgr.net]; NEURAL_SPAM_LONG(0.90)[0.896,0]; R_SPF_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:13868, ipnet:69.59.192.0/19, country:US]; MID_RHS_MATCH_FROM(0.00)[]; SUBJECT_HAS_QUESTION(0.00)[] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Jun 2019 16:15:18 -0000 > In message > Freddie Cash wrote: > > >For someone who doesn't want to be preached to about the benefits of IPv6, > >you certainly do a lot of preaching about not wanting IPv6. :) > > Guilty as charged. > > >You've been given the tools to do exactly what you want: > > - comment out IPv6 support in the kernel config file > > - add WITHOUT_IPV6=yes to /etc/src.conf > > - rebuild the world and kernel > > > >Voila! A version of FreeBSD made especially for you, without any traces of > >IPv6. Does exactly what you want. Why the long diatribe asking for > >something else once you've been shown how to do what you want? > > Rebuild kernel+world is not exactly a quick solution. Agreed. And I only recommend rebuilding the kernel, one of my motivations for that is besides not needing the v6 on a log of stuff is it reduces both wasted code size, and some security concerns. > And god only knows how much will break once I've done that. How many other > people have tested -all- of the resulting binaries, seriously, on actual > production systems? (I may be the first one ever, at least for 12.0.) I also agree here, running a WITHOUT_IPV6 userland is both very painful to get built AND has issues that one does not need to face, like I showed in another thread about netstat -6. > But this is all besides the point anyway. I am now resigned to my fate, > and I am already up to the fifth stage of grief with respect to this issue. > > https://en.wikipedia.org/wiki/K%C3%BCbler-Ross_model > > > Regards, > rfg -- Rod Grimes rgrimes@freebsd.org