To assign OSPF features and functions to each router, use the CONFIG-INTERFACE commands for each
interface.
Note: By default, OSPF is disabled.
Configuration Task List for OSPFv2 (OSPF for IPv4)
Configuration takes three steps:
1. Configure a physical interface. Assign an IP address, physical or loopback, to the interface to enable
Layer 3 routing.
2. Enable OSPF globally. Assign network area and neighbors.
3. Add interfaces or configure other attributes.
The following configuration steps include two mandatory steps and several optional ones:
•
Enable OSPFv2
•
Enable Multi-Process OSPF
•
Assign an OSPFv2 area
•
Enable OSPFv2 on Interfaces
•
Configure Stub Areas
•
Configure LSA Throttling Timers
•
Enable Passive Interfaces
•
Enable Fast-Convergence
•
Change OSPFv2 Parameters on Interfaces
•
Enable OSPFv2 Authentication
•
Redistribute Routes
•
Troubleshooting OSPFv2
For a complete listing of all commands related to OSPFv2, refer to the OSPF section in the FTOS
Command Line Interface document.
Enable OSPFv2
Assign an IP address to an interface (physical or loopback) to enable Layer 3 routing. By default, OSPF,
like all routing protocols, is disabled.
Before enabling OSPFv2 globally, you must configure at least one interface for Layer 3.
If implementing multi-process OSPF, you must create an equal number of Layer 3-enabled interfaces and
OSPF Process IDs. For example, if you create 4 OSPFv2 process IDs, you must have four interfaces with
Layer 3 enabled.
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Open Shortest Path First (OSPFv2)
(mandatory)
(mandatory)