To display the source to which a group is mapped, use the show ip igmp ssm-map [group] command. If you use the groupoption, the command displays the group-to-source mapping even if the group is not currently in the IGMP group table. If you do not specifythe group option, the display is a list of groups currently in the IGMP group table that has a group-to-source mapping.To display the list of sources mapped to a group currently in the IGMP group table, use the show ip igmp groups group detailcommand.Configuring PIM-SSM with IGMPv2R1(conf)#do show run pim!ip pim rp-address 10.11.12.2 group-address 224.0.0.0/4ip pim ssm-range ssmR1(conf)#do show run acl!ip access-list standard mapseq 5 permit host 239.0.0.2!ip access-list standard ssmseq 5 permit host 239.0.0.2R1(conf)#ip igmp ssm-map map 10.11.5.2R1(conf)#do show ip igmp groupsTotal Number of Groups: 2IGMP Connected Group MembershipGroup Address Interface Mode Uptime Expires Last Reporter239.0.0.2 Vlan 300 IGMPv2-Compat 00:00:07 Never 10.11.3.2Member Ports: Te 1/1/1239.0.0.1 Vlan 400 INCLUDE 00:00:10 Never 10.11.4.2R1(conf)#do show ip igmp ssm-mapIGMP Connected Group MembershipGroup Address Interface Mode Uptime Expires Last Reporter239.0.0.2 Vlan 300 IGMPv2-Compat 00:00:36 Never 10.11.3.2Member Ports: Te 1/1/1R1(conf)#do show ip igmp ssm-map 239.0.0.2SSM Map InformationGroup : 239.0.0.2Source(s) : 10.11.5.2R1(conf)#do show ip igmp groups detailInterface Vlan 300Group 239.0.0.2Uptime 00:00:01Expires NeverRouter mode IGMPv2-CompatLast reporter 10.11.3.2Last reporter mode IGMPv2Last report received JoinGroup source listSource address Uptime Expires10.11.5.2 00:00:01 NeverInterface Vlan 400Group 239.0.0.1Uptime 00:00:05Expires NeverRouter mode INCLUDELast reporter 10.11.4.2Last reporter mode INCLUDELast report received ALLOWGroup source listSource address Uptime Expires10.11.5.2 00:00:05 00:02:04Member Ports: Te 1/2/1656 PIM Source-Specific Mode (PIM-SSM)
