Date: Wed, 12 Jul 2000 17:15:28 +1000 (EST) From: Claus Endres <claus@b5.nu> To: airboss@bitstream.net (Dan Debertin) Cc: freebsd-net@FreeBSD.ORG Subject: Re: multicast forwarding and OSPF Message-ID: <200007120715.RAA87069@minbar.b5.nu> In-Reply-To: <Pine.LNX.4.20.0007112351050.269-100000@dmitri.bitstream.net> from "Dan Debertin" at Jul 11, 2000 11:57:19 PM
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Multicasts do not get routed across the two fxp interface cards without some agent that understands the multicast protocol involved. In your case you need an agent understanding OSPF. The simplest one for that is gated. So you need to install gated (e.g. from the ports collection), configure OSPF on both interfaces (in /etc/gated.conf), and your FreeBSD system will become a router talking routing protocols. Claus. > > I'm running FreeBSD-4.0-STABLE on my set of firewalls, each of which are > equipped with two fxp cards. On each side of those firewalls, I have a > router that runs OSPF. I can see, via tcpdump, that there are hellos > happening on either side of the firewalls, but none of them are getting > through to the other side -- i.e. I don't see the hellos from the internal > router coming out the external interface, and vice versa. This happens > regardless of whether I have firewalling enabled or not, so I'm sure it's > not my ipfw ruleset. > > The first thing that occurs to me is that there's something I'm missing as > far as kernel configuration or sysctls. I compiled with options MROUTING, > but that didn't seem to do the trick. Do i need to run mrouted? Please > advise ... Thanks. > > ~Dan D. > -- > __________________________________________________________________ > -- The trouble with doing something right the first time is that > -- nobody appreciates how difficult it was. > > ++ Dan Debertin > ++ Senior Systems Administrator > ++ Bitstream Underground, LLC > ++ airboss@bitstream.net > ++ (612)321-9290 > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message > -- ======================================================== Claus Endres | e-mail: claus@b5.nu | Fax: +61-3-59982540 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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