Single Area OSPF Configuration. Establish full connectivity across the topology. Use static and default routes where appropriate. Use default route redistribution. Ensure that the DR,BDR or DROTHER roles are correctly assigned during the election process. Assignment 7: Single Area OSPF Configuration. Establish full connectivity across the topology. Use static and default routes where appropriate. Use default route redistribution. Ensure that the DR,BDR or DROTHER roles are correctly assigned during the election process..