Robert,
I think our situation is a bit more complicated, however, I'll draw it out
to hopefully add some direction.
######################
### Office VOIP PBX### Routable IP Address Office Net
######################
||
ENET
||
######################
### FreeBSD Router ###
######################
||
DSL
||
######################
#### INTERNET ###
######################
||
DSL
||
###################### WAN IP Routable
### FreeBSD Router ###
###################### NAT Inside / Remote Network
||
ENET
||
######################
### VOIP Phone ### IP on RFC1918 Space
######################
Currently, we use a PPP tunnel to put the PBX and Phone on subnets that
can talk to each other. The two FBSD boxen run as the endpoints of the
tunnel. We need to be able to seamlessly forward multicast traffic between
the remote network and the office network.
Any ideas?
Thanks,
Tom
On Tue, 17 Jun 2003, Robert Watson wrote:
>
> On Tue, 17 Jun 2003, Tom Daly wrote:
>
> > Could you clarify a bit? Are you able to move the multicast traffic
> > between each side of the IP-IP tunnel?
>
> Yes. We use mrouted to configure multicast tunnels in pretty much the
> following way (IP addresses tweaked to protect the guilty):
>
> % more mrouted.conf
> tunnel 10.33.1.16 192.168.49.50 metric 1 threshold 1
> tunnel 10.33.1.16 192.168.10.251 metric 1 threshold 1
> ...
>
> In this case, 10.33.1.16 is the local IP, and 192.168.49.50 are remote IPs
> of other multicast tunnel endpoints with similar configurations. The
> remote boxes are generally on the other side of wide area networks without
> multicast routing in between. This "just works".
>
> >
> > 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
> > > [EMAIL PROTECTED] Network Associates Laboratories
> > >
> > >
> > > _______________________________________________
> > > [EMAIL PROTECTED] mailing list
> > > http://lists.freebsd.org/mailman/listinfo/freebsd-net
> > > To unsubscribe, send any mail to "[EMAIL PROTECTED]"
> > >
> >
> > --
> > Tom Daly
> > [EMAIL PROTECTED]
> > Chief Infrastructure Officer
> > Dynamic DNS Network Services
> > http://www.dyndns.org/
> >
> >
>
> _______________________________________________
> [EMAIL PROTECTED] mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "[EMAIL PROTECTED]"
>
--
Tom Daly
[EMAIL PROTECTED]
Chief Infrastructure Officer
Dynamic DNS Network Services
http://www.dyndns.org/
_______________________________________________
[EMAIL PROTECTED] mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
