Filtering of multicast group mapping

From: Mujeeb Sarwar (mujeebsarwar@gmail.com)
Date: Tue Jun 17 2008 - 07:33:45 ART


Dear Group,

I have a query regarding filtering of RP to Group mapping. Let suppose
following is the topology,

R3 ------- R2 -------- R1

R3 & R2 are candidate RPs and R1 is the mapping agent. We have to filter RP
to Group mapping at R1 which we can do using rp-announce-filter with rp-list
and group-list options at mappping agent and parallely using
send-rp-announce with group-list option at candidate RPs.

Problem is that if I use deny statement in ACL on candidate RP to filter
some specific group and announce all other groups then mapping agent filters
all groups regardless of what is pemited/denied on candidate RP.

But on the other hand if I use permit statement in ACL on candidate RP to
allow specific groups then mapping agent works fine and do specific group
mappings.

Is this normal behavior or I am missing something ?

Regards,

Mujeeb



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