To add a router to an OSPF area
Steps
1 |
In the navigation tree OSPF view, expand Network→Routing→OSPF Area. |
2 |
Right-click on the OSPF area icon and choose Add OSPF Instance. The Area Site (Create) form opens. |
3 |
Configure the required parameters. Configure the area as a blackhole range to avoid routing loops. |
4 |
Select a Routing Instance in the Routing Instance panel. |
5 |
Depending on the Type parameter value from Step 3 , the Stub/NSSA tab is configurable. Click on the Stub/NSSA tab and configure the required parameters. The Default Cost parameter is configurable only when the Type parameter value from Step 3 is Stub (No Type 5 External) or Totally Stub (No Summaries). The Redistribute External Routes, Originate Default Route, and Adjacency Check parameters are configurable only when the Type parameter value from Step 3 is NSSA (No Type 5 External) or NSSA (No Summaries). The Adjacency Check parameter is configurable only when the Originate Default Route is set to Originate Type 3 or Originate Type 7. Enable the Adjacency Check parameter to enforce an ABR to have an adjacency in area 0 before the default route or routes can be advertised into the NSSA. |
6 |
Save your changes and close the form. An icon for the router appears in the navigation tree under the OSPF Area icon. End of steps |