994 Configuring OSPF and OSPFv3
Figure 34-36. OSPF Configuration—Stub Area and NSSA Area
Switch A is a backbone router. It links to an ASBR (not defined here) that 
routes traffic outside the AS.
To configure Switch A:
1
Globally enable IPv6 and IPv4 routing:
console#configure
console(config)#ipv6 unicast-routing
console(config)#ip routing
2
Create VLANs 6 and 12. 
console(config)#vlan 6,12
3
Configure IP and IPv6 addresses on VLAN routing interface 6.
Area 1 – Stub
0.0.0.1
Area 2 – NSSA
0.0.0.2
Area 0
0.0.0.0
Internal 
Router
Internal 
Router
Area Border 
Router
Backbone
Router
AS 
Boundary 
Router
VLAN 6
10.2.3.3
3000:2:3::
VLAN 12
10.3.100.3
3000:3:100::
VLAN 5
10.2.3.2
3000:2:3::
VLAN 17
10.2.4.2
3000:2:4::
VLAN 10
10.1.2.2
3000:1:2:1::
Switch A 
3.3.3.3
Switch B 
2.2.2.2