Sorry if duplicate...Multicast Routing

[Tom Daly]

Robert,
Could you clarify a bit? Are you able to move the multicast traffic
between each side of the IP-IP tunnel?

Tom

On Tue, 17 Jun 2003, Robert Watson wrote:

>
> On Tue, 17 Jun 2003, Tom Daly wrote:
>
> > Has anyone been able to create a unified multicast broadcast domain
> > using FreeBSD routers and tunnels? Our internal telephone system VOIP
> > system that uses multicast to handle things like conference calling and
> > paging.  Many of our employess are off site, which DSL lines. A FreeBSD
> > box creates a PPP tuennel for packet flow, which lets basic VOIP
> > functions happen, but to allow more flexibility, I need to route
> > multicast traffic as well.  Anyone have any good suggestions as to how
> > to get this going? I have tried numerous things with mrouted, but they
> > do not seem to work.
>
> I've never used PPP to directly tunnel multicast, although the tun0
> interfaces appear to have the MULTICAST flag set.  The configuration we
> use here at NAI Labs is to use IP in IP tunneling between sites, and IP
> multicast over ethernet multicast on local area networks, which works
> quite well.  We use this specifically for video multicast, since we are
> generally relying on the phone networks to do audio still for latency
> reasons.
>
> Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
> robert at fledge.watson.org      Network Associates Laboratories
>
>
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-- 
Tom Daly
tom at dyndns.org
Chief Infrastructure Officer
Dynamic DNS Network Services
http://www.dyndns.org/