From: Chris Lewis (chrlewiscsco@gmail.com)
Date: Wed Mar 22 2006 - 13:11:41 GMT-3
NAT would appear to be a solution, meaning translate the multicast address
on R2 to the subnet broadcast address of VLAN 70 (assuming R4 allows
directed broadcasts).
Chris
On 3/22/06, Petr Lapukhov <petrsoft@gmail.com> wrote:
>
> Hmm.. nothing besides ip igmp static group comes into mind, but that won't
> work
> too :)
>
> Maybe some more details on topology, probably we can link VLAN70 to R2
> some other way...
>
> 2006/3/22, Schulz, Dave <DSchulz@dpsciences.com>:
> >
> > Sorry, that is all the details that I have on this one. The only thing
> > that I came up with is to enable pim on the interface that is facing the
> R4
> > router. This will at least allow you to ping the multicast group from
> the
> > R4 router. You cannot ping the multicast group without this.
> >
> >
> >
> >
> >
> > Dave Schulz,
> >
> > Email: dschulz@dpsciences.com <dschulz@dpsciences.com%20>
> >
> >
> > ------------------------------
> >
> > *From:* Petr Lapukhov [mailto:petrsoft@gmail.com]
> > *Sent:* Wednesday, March 22, 2006 1:47 AM
> > *To:* Schulz, Dave
> > *Cc:* ccielab@groupstudy.com
> > *Subject:* Re: Multicast lab question
> >
> >
> >
> > Hello Dave,
> >
> > Interesting question, can you provide more scenario detail?
> >
> > I thought of MVR at first , but configuring just R2 prohibts
> > this idea.. Second idea was stub multicats routing, but
> > that requires some more configuration, above just touching R2..
> >
> > TIA
> > Petr
> >
> > 2006/3/22, Schulz, Dave <DSchulz@dpsciences.com >:
> >
> > Group -
> >
> > If I have a multicast group that is running in sparse-mode with 3
> > routers and a static RP.....R1, R2 and R3. I have a loopback on R3 that
> > has a igmp join to 225.5.5.5. And, everything is working good and can
> > ping the group from all routers, and everyone is happy. However, the
> > next requirement is to have a router R4 attached to R2 that does not
> > have multicast enabled, but allowing users on VLAN70 to reach this
> > multicast group. And, you have to configure this on R2, not R4. Any
> > thoughts?
> >
> > R1---------------R2(RP)------------------R3
> > | s0
> > \
> > R4........VLAN70
> >
> >
> >
> > Dave Schulz,
> > Email: dschulz@dpsciences.com <mailto:dschulz@dpsciences.com >
> >
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