From: CCIE FUN (ccieexam2002@xxxxxxxxx)
Date: Wed Aug 07 2002 - 15:09:40 GMT-3
First of all the multicast address range is from
224.0.0.0 through 239.255.255.255
second thing, once you correct the Multicast address,
make sure you have Multicast enabled on the LOOPback 0
of R1 with the command ip pim sparse-dense mode.
--- Edmund Roche-Kelly <edr9007@nyp.org> wrote:
> What makes you think 240.0.0.1 and 241.0.0.2 are
> multicast addresses?
>
>
> "Krucker, Louis" wrote:
> >
> > Hi folks
> >
> > I play around with a simple multicast lab and run
> in some troubles
> >
> > |-R2-------------R1---------------R4--|
> >
> > R2 is the multicast source, R1 is the mapping
> agent and R4 is connected
> > to multicast receivers. I use sparse-dense mode on
> all interfaces, R2 is the
> > RP.
> >
> > My idea was to simulate two multicast groups on R2
> which i can ping from
> > R4 to test it.
> >
> > On R2 i use ip igmp join-group 240.0.0.1
> > ip igmp join-group 241.0.0.2
> > and on the ethernet "ip pim send-rp-announce
> Loopback0 scope 10"
> > to announce the rp to the cloud.
> >
> > On R1 i have configure ip pim send-rp-discovery lo
> 0 scope 10 to
> > set up a mapping agent. On R4 i configured only
> multicast-routing and
> > sparse-dense mode on the interfaces which route
> multicast.
> >
> > The problem I can ping those groups from the MA
> but not from R4, does
> > somebody know where is the mistake ? IP routing is
> OK because i can ping
> > from R4 the ethernet interface where thos two
> sourced are connected.
> >
> > Thanks for help
> >
> > Louis
> >
>
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