BSCI - OSPF - Area Types - Stub Area

Stub Area - Does not accept Type5 LSA's (External routes)

• Type5 LSA's replaced by a default route from the ABR
• All routers within the Stub area must be configured as a Stub Router

Configure a Stub Router:

R1(config)# router ospf 1

R1(config-router)#area 2 stub

  *Note the adjacency will fail until the neighbor plus the ABR is configured as a Stub as well

NOTE - On the ABR #sh ip route - will not change

On the Stub router, #sh ip route - routes from the ABR are replaced by a default route.