Hi community, I'm trying to achieve the following. Could anybody tell me what has to be configured on the router running IOS 15.5?
1. Interface Vlan72 receives IGMP Membership Report from end hosts in the segment.
2. The router populates its MRIB with a corresponding (*,G) entry.
3. A new IGMP Membership Report is generated by the process and is sent via interface Gig8 to the Service Provider.
4. Service Provider gets the IGMP Membership Report and starts sending the feed.
5. Our router receives feed and forwards it out the interface Vlan72, where receivers are.
The problem is that we do not run PIM with the Service Provider, so our end (CPE) has to act as a plain receiver sending IGMP Report messages over the link. By not running PIM, I mean we do not receive any PIM Hello over the link.
They said we should enable IGMP Proxy to achieve our goal, but the only information I could find is related to Unidirectional-Link environment and I couldn't find out how to apply it to my situation.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_igmp/configuration/xe-3se/5700/imc-igmp-xe-3se-5700-book/imc_igmp_proxy.html
I already verified that we actually receive multicast packets by setting ip igmp join-group 239.1.2.3 on Gig8, which is why I believe that if we could somehow «proxy» the Membership Reports to the SP, that'll solve the problem.
ip multicast-routing
!
interface Loopback0
ip address 10.88.1.1 255.255.255.0
ip pim sparse-mode
!
interface GigabitEthernet8
description LINK_TO_SP
ip address 1.2.3.4 255.255.252.0
ip pim sparse-mode
ip nat outside
ip igmp join-group 239.1.2.3
!
interface Vlan72
description SEGMENT_WITH_RECEIVERS
ip address 10.88.72.1 255.255.255.0
ip pim sparse-mode
ip nat inside
!
ip pim rp-address 10.88.1.1
Thank you in advance and wish you a nice day!
jellybeanshiba
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