IOS version for PIM Register Tunnel

[jiss.jacob]

I would like to know which IOS version support PIM registry tunnel between multicast source and RP in PIM sparse mode. I am currently using 12.4(13a) on Cisco3640 router in GNS3.

[Peter Paluch]

Hello,

Any IOS version that implements PIM Sparse Mode must implement the PIM Register tunnel, as that is an inseparable part of the PIM SM mechanism. However, recent IOSes represent this tunnel as a standalone Tunnel interface while older IOSes perform this tunneling silently, without creating a Tunnel interface. In either case, you as an administrator do not need to care about this, as the Tunnel interface is never configured by you manually.

So if your IOS supports PIM SM then you can be sure it is capable of originating and terminating PIM Register tunnels.

Best regards,
Peter

[jiss.jacob]

hi Peter,

Thanks for the prompt support. I have done a lab on PIM SM in GNS3 and I could see the PIM registration being successful and PIM SM working perfectly fine. I actually wanted to see the PIM register tunnel coming up . So do you have any idea on the IOS version where I can test it?