From owner-freebsd-stable@FreeBSD.ORG Thu Apr 13 13:07:03 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 756BA16A402 for ; Thu, 13 Apr 2006 13:07:03 +0000 (UTC) (envelope-from Stephen.Clark@seclark.us) Received: from smtpout07-04.prod.mesa1.secureserver.net (smtpout07-01.prod.mesa1.secureserver.net [64.202.165.230]) by mx1.FreeBSD.org (Postfix) with SMTP id F136B43D46 for ; Thu, 13 Apr 2006 13:07:02 +0000 (GMT) (envelope-from Stephen.Clark@seclark.us) Received: (qmail 13918 invoked from network); 13 Apr 2006 13:07:02 -0000 Received: from unknown (24.144.77.138) by smtpout07-04.prod.mesa1.secureserver.net (64.202.165.233) with ESMTP; 13 Apr 2006 13:07:02 -0000 Message-ID: <443E4CF5.6000901@seclark.us> Date: Thu, 13 Apr 2006 09:07:01 -0400 From: Stephen Clark User-Agent: Mozilla/5.0 (X11; U; Linux 2.2.16-22smp i686; en-US; m18) Gecko/20010110 Netscape6/6.5 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Bruce M Simpson References: <443DB8A5.1020006@seclark.us> <20060413063214.GA94628@spc.org> <20060413063604.GB94628@spc.org> In-Reply-To: <20060413063604.GB94628@spc.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: IP_MAX_MEMBERSHIPS X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Stephen.Clark@seclark.us List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 Apr 2006 13:07:03 -0000 Bruce M Simpson wrote: >On Thu, Apr 13, 2006 at 07:32:14AM +0100, Bruce M Simpson wrote: > > >>On Wed, Apr 12, 2006 at 10:34:13PM -0400, Stephen Clark wrote: >> >> >>>Can anyone tell me why the maximum number of members in a multicast >>>group is set at >>>20? >>>Are there issues with increasing this number? >>> >>> > >Ah. Your original question appears not to have been answered. My bad. > >I do not see a limit on the members of a multicast group on FreeBSD >either for individual sockets or for multicast forwarding based on my >reading of the source code. > >BMS > > > From FreeBSD 6.0 prerelease also in 4.9 /usr/src/sys/netinet/in.h #define IP_MAX_MEMBERSHIPS 20 /* per socket */ Steve -- "They that give up essential liberty to obtain temporary safety, deserve neither liberty nor safety." (Ben Franklin) "The course of history shows that as a government grows, liberty decreases." (Thomas Jefferson)