To add a Layer 3 interface to an OSPF router

Purpose

Perform this procedure to allow an OSPF-enabled router to participate in area discovery and share routing information with other area members.

Note: This action assigns an existing Layer 3 interface to the router in the OSPF area rather than creating a new Layer 3 interface.

Steps
 
1 

In the navigation tree OSPF view, expand Network→Instance.

2 

Right-click on an Instance icon and choose Create Interface. The OSPF Interface (Create) form opens.

3 

Configure the required general parameters.

4 

Choose an interface in the Interface panel.

5 

Click on the Protocol Properties tab and configure the required parameters.

6 

Perform one of the following steps to configure authentication for the interface. Otherwise, go to Step 10 .

  1. Click on the Authentication tab, and go to Step 7 .

  2. For OSPFv3 interfaces, go to Step 8 .

7 

Configure the Authentication Type parameter.

  1. Choose MD5-based Authentication.

    Perform the following steps:

    1. Click Create to create an MD5 authentication key. The Md5Key (Create) form opens.

    2. Configure the required parameters and save your changes.

  2. Choose Simple Password.

    Perform the following steps:

    1. Click Change Password to enter a password. The Password (Create) form opens.

    2. Configure the required parameters and save your changes.

8 

Click on the IPsec Static SA tab and configure the required parameters.

9 

Click on the Policies tab and configure the required parameters.

10 

Click on the Segment Routing tab and configure the required parameters.

You cannot configure the IPv4 SID Type or SID Value parameter on a network interface that is not loopback enabled or that is on a service interface. In the navigation tree Routing view, expand Network→NE→Routing Instance→Interface, right-click on the interface and choose Properties. Configure the Loopback Enabled parameter on the Network Interface (Edit) form.

The IPv4 SID Value range depends on the Prefix Start Label and Prefix Map Index configured in the OSPF instance, see To configure OSPF segment routing .

11 

Save your changes and close the form.

End of steps