Configure the OSPFv2 Process and Areas
You can configure up to 2 OSPFv2 processes using threat defense. The process numbers are purely internal indicators; they do not need to match any process numbers used on other devices, although you can make the numbers consistent for your own tracking purposes.
If you use private network numbering, such as 192.168.1.0/24, for any internal networks, you might need to segregate private addresses from public addresses, using one OSPFv2 process for these internal networks, and a second process for the external, publicly-addressable networks. Even if you do not use private numbering, you might want to run one process on the inside and another on the outside, and redistribute a subset of routes between the two processes. If you use NAT, and OSPF is operating on public and private areas, and if address filtering is required, then you need to run two OSPF processes—one process for the public areas and one for the private areas.
Area numbers, in contrast, do exist in the network and you must use the same numbers used by other adjacent routers. If you are configuring a single-area network, use Area 0, also known as the backbone area. For multiple-area networks, where you have a hierarchical network design, you must understand the areas defined in the network, and know which areas this device is supposed to participate in.
If you are using virtual routers, you can configure 2 OSPFv2 processes per virtual router.
The following procedure explains how to create a single OSPFv2 process. Repeat the procedure to create a second process.
Procedure
Step 1 |
Click Device, then click the Routing summary. |
Step 2 |
If you enabled virtual routers, click the view icon () for the router in which you are configuring OSPF. |
Step 3 |
Click the OSPF tab. |
Step 4 |
Do one of the following:
If you no longer need a process, click the trash can icon for the object to delete it. |
Step 5 |
Enter a name for the object, and optionally, a description. |
Step 6 |
Configure the basic process properties:
|
Step 7 |
Click the Show Disabled link above the object body to add all other possible configuration lines. |
Step 8 |
Configure the area number.
|
Step 9 |
Configure the networks and interfaces that should be routed within the area. |
Step 10 |
If you are configuring the process for a multiple-area network, mouse over the area to the left of the circled - on the area and configure area lines and click . Then, configure the new area and its networks as explained above. Repeat this process until you have defined all areas in which this routing process should participate. |
Step 11 |
Click OK. |