RE: MA on spoke router !! Rp on another spoke !! sender/receier

Yeah - the issue is not with GNS3. You will see issues with actual hardware as
well. The Mapping Agent needs to be on the Hub device for consistent
functionality here - even with pim nbma-mode and the static RP assignment of
the Auto-RP groups.

From: imran ali [mailto:immrccie_at_gmail.com]
Sent: Wednesday, December 08, 2010 7:43 AM
To: Anthony Sequeira
Cc: Cisco certification
Subject: Re: MA on spoke router !! Rp on another spoke !! sender/receier on
another spoke ...

thanks Anthony,

ip pim nbma mode command should technically inject other spokes in OIL list .

i have seen brain tricking a solution as follows

on spoke / hub configure static rp with access list that permits 224.0.1.39
and 224.0.1.40
so that hub can treat these two groups as sparse . so hub should forward
traffic out to every spoke
as present in OIL

theoretically logical when tested on gns3 , no success .

Regards
On Wed, Dec 8, 2010 at 1:14 PM, Anthony Sequeira
<asequeira_at_ine.com<mailto:asequeira_at_ine.com>> wrote:
I believe that tunneling would have to be used in a situation like this.

The Auto-RP mapping agent on a spoke device in a Frame hub and spoke
environment has issues, and as such, the R&S Lab Exam would not have us
configure this, unless they permitted some very big "workarounds".

-----Original Message-----
From: nobody_at_groupstudy.com<mailto:nobody_at_groupstudy.com>
[mailto:nobody_at_groupstudy.com<mailto:nobody_at_groupstudy.com>] On Behalf Of
imran ali
Sent: Tuesday, December 07, 2010 5:12 PM
To: Cisco certification
Subject: MA on spoke router !! Rp on another spoke !! sender/receier on
another spoke ...

 hi experts ,

if in a lab environment the task ask to configure MA on a spoke router which
dont have direct l2 circuits with others except the Hub , the other spokes
will not get mappings due to lack of l2 connectivity . what are different work
around we can have ???

i m getting a lot of frustration after trying hard to get a successful ping
from a spoke routers.

R1 is a hub R2 , R3 , R4 are spokes . R2 is RP and R3 is MA , the
receivers are behind R4 . All running pim sparse mode , no rpf issues as
topology is very simple running single igp and pim on all interface (each
router has only one s0/0 int connected to cloud )

however R4 is not getting MA messages and ping fails . i have given ip pim
nbma mode / auto rp listener command on the hub router as well.

has any one tried multi casting heavily on dynamips and spotted any issues ?

Regards

Blogs and organic groups at http://www.ccie.net<http://www.ccie.net/>
Received on Wed Dec 08 2010 - 07:47:03 ART