Configuring Stub and NSSA Areas for OSPF and OSPFv3
In this example, Area 0 connects directly to two other areas: Area 1 is defined
as a stub area and Area 2 is defined as an NSSA area.
NOTE:
OSPFv2 and OSPFv3 can operate concurrently on a network and on the
same interfaces (although they do not interact). This example configures both
protocols simultaneously.
Figure 34-36 illustrates this example OSPF configuration.
Figure 34-36. OSPF Configuration—Stub Area and NSSA Area
Internal
Router
Area 1 – Stub
0.0.0.1
VLAN 5
10.2.3.2
Switch B
3000:2:3::
2.2.2.2
Area Border
Router
VLAN 10
10.1.2.2
3000:1:2:1::
Area 0
0.0.0.0
Switch A
3.3.3.3
VLAN 6
10.2.3.3
3000:2:3::
VLAN 17
10.2.4.2
3000:2:4::
Internal
Router
Area 2 – NSSA
0.0.0.2
Configuring OSPF and OSPFv3
AS
Boundary
Router
VLAN 12
10.3.100.3
3000:3:100::
Backbone
Router
985