OSPF Areas (Part 3) - Stub
Links:
RFC 2328 – OSPF Version 2
RFC 2740 – OSPF for IPv6
Breakdown of the Stub Area:
Cannot be backbone area (area 0)
Cannot redistribute into stub areas (no ASBRs)
Virtual links are not allowed to transit stub areas
ABRs generate a default route (0.0.0.0/0) for the area
Blocks Type-5 External LSAs and Type-4 ASBR LSAs
All routers in stub area must be configured as stub to form an adjacency
Source: OSPF Areas (Part 3) - Stub (//)
From http://blog.movingonesandzeros.net/