From: CCIEin2006 (ciscocciein2006@gmail.com)
Date: Mon Jan 16 2006 - 18:02:44 GMT-3
It seems the rp-announce-filter command does not work on ranges of group
addresses.
I am saying this because I have one router announcing the entire
224.0.0.0/4range while the mapping agent has a filter configured for
239.0.0.0/8. A debug shows that the 224.0.0.0/4 is being filtered by the
mapping agent.
See example below:
This is the RP ---> (R3)------(R1) <----- This is the mapping agent with
rp-announce-filter
Here are the configs:
R3:
ip pim send-rp-announce Loopback0 scope 15
R1:
ip pim send-rp-discovery Serial0/0 scope 15
ip pim rp-announce-filter rp-list R3 group-list R3-groups
ip access-list standard R3
permit 150.1.3.3
ip access-list standard R3-groups
permit 239.0.0.0 0.255.255.255
Debug ip pim auto-rp on R1 shows the following:
*Mar 1 23:34:21.671: Auto-RP(0): Received RP-announce, from 150.1.3.3,
RP_cnt 1, ht 181
*Mar 1 23:34:21.671: Auto-RP(0): Filtered 224.0.0.0/4 for RP 150.1.3.3
*Mar 1 23:34:21.671: Auto-RP(0): Received RP-announce, from 150.1.3.3,
RP_cnt 1, ht 181
*Mar 1 23:34:21.671: Auto-RP(0): Filtered 224.0.0.0/4 for RP 150.1.3.3
Any idea why R1 is not permitting the 239.0.0.0 range?
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