02-17-2011 11:28 AM - edited 03-06-2019 03:36 PM
Hello,
I need to configure my router to be RP for 1 group only. It should reject PIM messages for all other groups. I've tried to to the following:
ipv6 pim rp-address XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX ALLOWED_GROUP
!
ipv6 access-list ALLOWED_GROUP
permit ipv6 any host FF08:YYYY:YYYY:YYYY:YYYY:YYYY:YYYY:YYYY
04-14-2012 02:00 AM
Hi,
Use acl as shown below instead of host
ipv6 access-list ALLOWED_GROUP
permit ipv6 any FF08:YYYY:YYYY:YYYY:YYYY:YYYY:YYYY:YYYY/127
Regards,
Solomon
04-14-2012 05:47 AM
Hi Solomon,
But this is interesting - it's been discussed here already and no reasonable answer was given as of yet. What is the reason that you are not allowed to configure an IPv6 PIM-SM RP for a single group? Is this a technical issue of some sort? It just doesn't make sense.
Best regards,
Peter
04-14-2012 08:42 AM
Hi Peter,
Unfortunately an access-list cannot specify a permit entry for a *single* v6 multicast group. This is a general IOS limitation for now.
Regards,
Solomon
04-14-2012 09:20 AM
Hello Solomon,
Thank you for answering!
Unfortunately an access-list cannot specify a permit entry for a *single* v6 multicast group. This is a general IOS limitation for now.
Exactly, and I am interested in knowing if this limitation is caused by any reasonable technical cause, or whether it is just some (obviously unfortunate) design choice that could be remedied by a relatively simple correction in IOS's source code.
Best regards,
Peter
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