A vRtrIgmpHostRxQueryVerMismatch notification is generated when the IGMP host is configured as IGMPv3 but receives a IGMPv1 Query or IGMPv2 General Query on the host. vRtrIgmpHostAddress will identify the Host on which the query is received. vRtrIgmpHostAdminVersion will contain the configured version of the Host and vRtrIgmpNotifyQueryVersion will contain the version of the received query.
Sources for this description
Netdisco MIB archive copiesNokia networking MIB copies (LibreNMS/Observium Community)