From: kang lee (kanghlee@gmail.com)
Date: Fri Nov 16 2007 - 12:40:40 ART
Gupta,
that is what I saw on my lab. I had to ip pim autorp listener. otherwise
224.0.1.39 and 224.0.1.40 traffic is not going down to nbma. it is dense
mode, isn't it?
I reboot all the routers to clear out any possible cache. etc. only thing
worked was ip pim autorp lisner, other than GRE tunnel. some more
clarification might be very helpful.
Thanks.
On Nov 16, 2007 9:34 AM, Gupta, Gopal (NWCC) <gopal.gupta@hp.com> wrote:
>
> Hi Brian,
>
> That's fine, but one question arises what about the groups those are
> actually forwarding multicast traffic for; we don't have RP for them and
> IP pim auto RP listener command has not been entered there for learning
> RP for those groups.
> Like we have configured
>
> Ip pim rp address 150.1.2.2 1
> access-list 1 permit 224.0.1.39
> access-list 1 permit 224.0.1.40
>
> We have assigned RP for only these 2 groups on every Router but what
> about group 224.1.1.1 that SW2 has joined; we don't have RP for this
> group or how shall we learn the RP for this group without either
> Sparse-dense mode or ip pim autorp listner.
>
> May be I am missing something here, please clarify..
>
> Thanks
> Gops
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Brian McGahan
> Sent: Friday, November 16, 2007 19:40
> To: kang lee; Cisco certification
> Subject: Re: auto-rp and default rp placement on IE workbook volume 1
> version 4.1
> Importance: Low
>
> You need to force the 224.0.1.39 and 224.0.1.40 groups to be sparse in
> order to be forwarded via NBMA mode. To do this you need to define a
> default RP that is used just for those two groups, i.e.:
>
> ip pim rp-address 1.2.3.4 1
> access-list 1 permit 224.0.1.39
> access-list 1 permit 224.0.1.40
>
>
> HTH,
>
>
>
> Brian McGahan, CCIE #8593 (R&S/SP/Security)
> bmcgahan@internetworkexpert.com
>
> Internetwork Expert, Inc.
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>
>
> ----- Original Message -----
> Subject: auto-rp and default rp placement on IE workbook volume 1
> version 4.1
> Date: Wed, November 14, 2007 15:31
> From: "kang lee" <kanghlee@gmail.com>
>
> > Hi GS,
> >
> > I am having problem with small lab, auto-rp and default rp placement
> > on IE workbook volume 1 version 4.1. This is asking to place rp ma and
>
> > ca on
> spoke
> > node on NBMA. I am having problems with propagating rp throughout the
> > domain. I think this is natural thing bc ip pim nbma-mode will not
> propagate
> > dense mode traffic.
> >
> > Anyone had this problem?
> >
> > thanks
> >
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