/mcpInfo source: 10.1.5.4 (?), via Auto-RP Uptime: 01:00:48, expires: 00:02:07
Based on the output , 10.1.5.4 is the only RP learned via Auto-RP or otherwise. However, this router is only the RP for the groups 224.0.0.0/4. So, the pim accept-rp statement in the configuration is wrong. Possible Fixes The solution is to correct the IP address in the ip pim accept-rp statement as follows: Change this statement:
<#root> ip pim accept-rp 10.2.2.2 8
To this:
<#root> ip pim accept-rp 10.1.5.4 8
You can also change the statement to accept what is in the auto-rp cache, and make certain that the access list (8 in this example) permits the necessary multicast group range. This is an example:
<#root> ip pim accept-rp auto-rp
access-list 8 permit 224.0.0.0 0.255.255.255
Diagnose the Problem - Part 2 This error message is seen on router2.
router2# Aug 12 15:18:17.891: %PIM-6-INVALID_RP_JOIN: Received (, 224.0.1.40) Join from 0.0.0.0 for invalid R
Check to see if router2 is the RP for group 224.1.1.1:
<#root> router2#