Hi Marko, The Multicast Server is the ,which is behind the ASA.
Even I feel it should be through the tunnel. But in IPexpert's Vol 2 lab 17, the RP is being routed through the ASA and they have added a mroute through the tunnel to overcome the RPF check. It worked, but how will the IGMP messages reach the RP when it is being routed through the ASA? With regards Kings On Tue, Mar 27, 2012 at 11:58 AM, Marko Milivojevic <[email protected]>wrote: > > What is the direction of the multicast traffic flow? I.e. where are > clients and servers? > > To understand why I'm asking you thins, please go to our blog and read > this series of articles. That will explain the traffic flow you need to > support and will subsequently answer the question you have here: > > http://blog.ipexpert.com/2011/05/04/understanding-pim-register-process/ > > http://blog.ipexpert.com/2011/05/09/pim-register-there-is-a-source-but-no-clients/ > > http://blog.ipexpert.com/2011/06/30/pim-register-there-are-clients-but-no-source/ > > The issue of not routing the RP address through the correct interface will > most likely cause RPF failure. To read about that particular issue: > > http://blog.ipexpert.com/2010/12/13/multicast-reverse-path-forwarding-rpf/ > > http://blog.ipexpert.com/2010/12/15/multicast-rpf-failure-recovery-using-igp-routing/ > > http://blog.ipexpert.com/2010/12/27/multicast-rpf-failure-recovery-using-static-rpf/ > And if you're *really* adventurous: > http://blog.ipexpert.com/2010/12/29/multicast-rpf-failure-recovery-using-bgp/ > > Hope this helps. > > P.S. My gut feeling says "tunnel" :-) > > -- > Marko Milivojevic - CCIE #18427 (SP R&S) > Senior CCIE Instructor - IPexpert > > On Sat, Mar 17, 2012 at 01:35, Kingsley Charles < > [email protected]> wrote: > >> Hi all >> >> I have the following the topology. The ASA in multicontext mode is >> sitting in between the KS and GM. I am using a GRE point to point tunnel >> interface between R1 and R2. >> >> I am using pim sparse mode and the loopback of R1 is the PIM RP >> >> R1 (KS) L0 ------ ASA (multicontext) ------- R2 (GM) >> >> Ok, the R1's loopback address is routed through the ASA from R2. >> >> But the PIM tree is running across the tunnel. >> >> So should the R1's loopback address be routed through the tunnel or ASA? >> >> Or just adding the mroute for R1's loopback address through the tunnel >> interface is suffice while the regular route is through ASA? >> >> With regards >> Kings >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> > >
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
