I had a subinterface that was working fine with multicast as of yesterday. I moved over the configuration to another subinterface, and stopped receiving multicast traffic from the LAN. The router is a 7506. Here is the relevant configuration:
description Private Subnet
encapsulation dot1Q 113
ip vrf forwarding XXX
ip address 192.168.253.1 255.255.255.0
no ip redirects
no ip unreachables
no ip directed-broadcast
ip pim sparse-dense-mode
ip igmp static-group 188.8.131.52
if you do a sh ip mroute vrf XXXX 184.108.40.206- you see traffic going TO that lan- but not seeing traffic coming from it.
Later in the configuration we have bidirectional PIM enabled...
ip pim bidir-enable
ip pim vrf XXXXX rp-address 192.168.36.1
Like I said- all I changed was the subinterface. Any ideas?