! PermitANY — Cisco IOS Multi-area OSPF
! Multi-area OSPF configuration with route summarization, stub/NSSA areas, redistribution, and passive interfaces for Cisco IOS/IOS-XE routers.
! Generated: 2026-09-20
! These are EXAMPLE values. Replace with your actual config before deploying.
!
hostname RTR-CORE-01
!
router ospf 1
 router-id 1.1.1.1




 area 0 range 10.1.0.0 0.0.255.255



 network 10.0.0.0 0.0.0.255 area 0




 passive-interface Loopback0







!