Date: Sat, 14 Jun 1997 10:50:07 PDT From: Bill Fenner <fenner@parc.xerox.com> To: Lars Fredriksen <fredriks@mcs.net> Cc: hasty@rah.star-gate.com, multimedia@freebsd.org Subject: Re: Mbone question Message-ID: <97Jun14.105020pdt.177512@crevenia.parc.xerox.com> In-Reply-To: Your message of "Fri, 13 Jun 97 11:47:48 PDT." <199706131847.NAA28586@Mercury.mcs.net>
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Lars Fredriksen <fredriks@Mcs.Net> wrote: >1) What is the easiest way to find the closest mbone router to me so >that I can find out if they are willing give me a tunnel? Contact your service provider (and then they can contact their provider, etc.). >2) Assuming the following setup: > > PPP Ethernet > ------------------|gw|------------|machines| > 204.150.64.241 204.150.64.24[2-6] With unicast, it's easy to break the IP subnet model with proxy ARP and get away with it. It's a little harder with multicast, and mrouted doesn't support it (yet?). You need real subnets on each side. However, if the thing on the other end of the PPP link doesn't support DVMRP, then running natively on gw doesn't make sense anyway -- you can just disable the ppp interface and install a tunnel to whomever you're going to get a tunnel from. You might also have to use the "netmask" and "altnet" keywords on your ethernet interface to avoid advertising a DVMRP route for more than you're responsible for. Bill
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