Cisco Bug: CSCsz23922 - "ip igmp ssm-map static" is ignored when IGMP is triggered via MGCP MoH
Feb 15, 2018
- Cisco IOS
Known Affected Releases
Symptom: using command ip igmp ssm-map static <acl> <mcast source> When IGMPv2 membership report w/o source is triggered via MGCP for MoH, static map is not processed and membership report is rejected as being in SSM range w/o source specified. debug ip igmp will show IGMP(0): Ignoring request to join group 184.108.40.206, SSM group without source specified Conditions: IOS router is a analog voice gateway and will join mcast group on behalf of PSTN caller for music on hold. Router is triggered to join mcast group via MGCP message from call manager.
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