From owner-freebsd-current Sun Jun 6 0: 9:51 1999 Delivered-To: freebsd-current@freebsd.org Received: from moss.nibb.ac.jp (moss.nibb.ac.jp [133.48.46.64]) by hub.freebsd.org (Postfix) with ESMTP id 39A0414D2E for ; Sun, 6 Jun 1999 00:09:39 -0700 (PDT) (envelope-from tomoaki@biol.s.u-tokyo.ac.jp) Received: from localhost (localhost.nibb.ac.jp [127.0.0.1]) by moss.nibb.ac.jp (8.8.8/8.8.8) with ESMTP id PAA03587; Sun, 6 Jun 1999 15:57:42 +0900 (JST) (envelope-from tomoaki@biol.s.u-tokyo.ac.jp) To: dillon@apollo.backplane.com Cc: sec@42.org, freebsd-current@FreeBSD.ORG Cc: tomoaki@biol.s.u-tokyo.ac.jp Subject: Re: net.inet.tcp.always_keepalive on as default ? From: Tomoaki NISHIYAMA In-Reply-To: <199906060620.XAA17657@apollo.backplane.com> References: <199906042101.OAA03028@biggusdiskus.flyingfox.com> <199906042004.NAA09067@apollo.backplane.com> <19990606022955.C17345@matrix.42.org> <199906060620.XAA17657@apollo.backplane.com> X-Mailer: Mew version 1.94b8 on Emacs 19.34 / Mule 2.3 (SUETSUMUHANA) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: <19990606155741R.tomoaki@moss.nibb.ac.jp> Date: Sun, 06 Jun 1999 15:57:41 +0900 X-Dispatcher: imput version 990212(IM106) Lines: 18 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG From: Matthew Dillon Subject: Re: net.inet.tcp.always_keepalive on as default ? Date: Sat, 5 Jun 1999 23:20:20 -0700 (PDT) Message-ID: <199906060620.XAA17657@apollo.backplane.com> dillon> As far as dial-on-demand goes, that also makes no real difference. dillon> There are very few two-way dial-on-demand systems. Usually Two-way dial-on-demand systems may be few but actually exist. In that case, a keep alive packet may cause an extra charge of 10 yen (about US$0.08), which can be significant if the amount of other traffic is small. Note that I am not necessarily against keep alive, if there is a benefit over that charge. -------- Tomoaki Nishiyama e-mail:tomoaki@biol.s.u-tokyo.ac.jp Department of Biological Sciences, Graduate School of Science, The University of Tokyo To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message