Date: Thu, 13 Apr 2006 09:07:01 -0400 From: Stephen Clark <Stephen.Clark@seclark.us> To: Bruce M Simpson <bms@spc.org> Cc: freebsd-stable@freebsd.org Subject: Re: IP_MAX_MEMBERSHIPS Message-ID: <443E4CF5.6000901@seclark.us> In-Reply-To: <20060413063604.GB94628@spc.org> References: <443DB8A5.1020006@seclark.us> <20060413063214.GA94628@spc.org> <20060413063604.GB94628@spc.org>
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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)
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