OSPFv2 route redistribution
Route redistribution imports and translates different protocol routes into a specified protocol type. On the device, redistribution is supported for static routes, OSPF, RIP, and BGP. OSPF redistribution supports the import of static, RIP, and BGP routes into OSPF routes.
NOTE
The device advertises the default route into OSPF even if redistribution is not enabled, and even if the default route is learned through an IBGP neighbor. IBGP routes (including the default route) are not redistributed into OSPF by OSPF redistribution (for example, by the OSPF
redistribute command).
In the figure below, the device acting as the ASBR (Autonomous System Boundary Router) can be configured between the RIP domain and the OSPF domain to redistribute routes between the two domains.
NOTE
The ASBR must be running both RIP and OSPF protocols to support this activity.
NOTE
Do not enable redistribution until you have configured the redistribution route map. Otherwise, you might accidentally overload the network with routes you did not intend to redistribute.
Figure 26
Redistributing OSPF and static routes to RIP routes
