Date: Sat, 02 Nov 2019 20:59:04 -0500 From: Mike Karels <mike@karels.net> To: "Rodney W. Grimes" <freebsd-rwg@gndrsh.dnsmgr.net> Cc: Victor Gamov <vit@otcnet.ru>, freebsd-net@freebsd.org Subject: Re: FreeBSD as multicast router Message-ID: <201911030159.xA31x4he052393@mail.karels.net> In-Reply-To: Your message of Sat, 02 Nov 2019 15:43:33 -0700. <201911022243.xA2MhXIm093435@gndrsh.dnsmgr.net>
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> > Hi All > > = > > I have (noob) questions about multicast routing under FreeBSD. > > = > > I have FreeBSD box with two (or more) multicast enabled interfaces (e.= x. = > > vlan750 and vlan299). vlan750 connected to multicast source. > > = > > Then pimd installed and only this two interfaces enabled in pimd confi= g. = > > Multicast routes successfully installed by pimd and listed by `netstat= = > > -g -f inet` > > = > > Then client on vlan299 send IGMP-Join (this Join received by FreeBSD o= n = > > vlan299) > > = > > The question is: who will forward muilticast from one interface = > > (vlan750) to another (vlan299)? Is it kernel specific job or I need = > > additional software? > Please read the manpage multicast(4) "man 4 multicast", > you should need to build a custom kernel with the "options MROUTING" > to enable the multicast forwarding in the kernel. If "netstat -g" shows routes, the kernel must have been built with "option= s MROUTING". The kernel does the forwarding, according to those routing tables installe= d by pimd or another multicast routing program. Is it not working? It soun= ds like you are very close. > > Victor Gamov > -- = > Rod Grimes rgrimes@freeb= sd.org Mike
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