Managing IPv4 and IPv6 Multicast 1251Configuring and Viewing PIM-DM for IPv4 Multicast RoutingBeginning in Privileged EXEC mode, use the following commands toconfigure PIM-DM for IPv4 multicast routing on the switch and on VLANrouting interfaces and to view PIM-DM information.show ipv6 mld-proxy View a summary of the host interface statusparameters.show ipv6 mld-proxy interface View a detailed list of the host interface statusparameters. This command displays informationonly when MLD Proxy is operational.show ipv6 mld-proxy groups View a table of information about multicastgroups that MLD Proxy reported. This commanddisplays information only when MLD Proxy isoperational.Command Purposeconfigure Enter global configuration mode.ip routing Enable ip routing. Routing is required for PIM tocalculate where to prune the multicast trees.ip pim dense Enable PIM-DM on the switch.ip igmp Enable IGMP. IGMP is required for PIM to operateproperly.ip multicast Enable IPv4/IPv6 multicast routing.interface vlanvlan-id Enter Interface Configuration mode for the specifiedVLAN.ip pim Enable PIM-DM on the interface.ip igmp Enable IGMP on the interface. IGMP is required forproper operation of PIMDMip pim hello-intervalseconds Specify the number of seconds (range: 0–65535) towait between sending PIM hello messages on theinterface.exit Exit to Privileged EXEC mode.show ip pim View system-wide PIM information.Command Purpose