LR1.wue3(config-ospf6)# area 0.0.0.0
  export-list  Set the filter for networks announced to other areas
  filter-list  Filter networks between OSPF6 areas
  import-list  Set the filter for networks from other areas announced to the specified one
  nssa         Configure OSPF6 area as nssa
  range        Configured address range
  stub         Configure OSPF6 area as stub
LR1.wue3(config-ospf6)# area 0.0.0.0 nssa
  <cr>
  default-information-originate  Originate Type 7 default into NSSA area
  no-summary                     Do not inject inter-area routes into area