185
(QCT) #configure
(QCT) (Config)#ip routing
5. Assign IP addresses for VLANs 70, 80 and 90.
(QCT) (Config)#interface vlan 70
(QCT) (if-vlan70)#ip address 192.150.2.2 255.255.255.0
(QCT) (if-vlan70)#exit
(QCT) (Config)#interface vlan 80
(QCT) (if-vlan80)#ip address 192.150.3.1 255.255.255.0
(QCT) (if-vlan80)#exit
(QCT) (Config)#interface vlan 90
(QCT) (if-vlan90)#ip address 192.150.4.1 255.255.255.0
(QCT) (if-vlan90)#exit
6. Enable OSPF on the switch and specify a router ID.
(QCT) (Config)#router ospf
(QCT) (Config-router)#router-id 192.150.9.9
(QCT) (Config-router)#exit
7. Configure the OSPF area ID and cost for each interface.
Note: OSPF is globally enabled by default. To make it operational on the router, you configure OSPF
for particular interfaces and identify which area the interface is associated with.
(QCT) (Config)#interface vlan 70
(QCT) (if-vlan70)#ip ospf area 0.0.0.0
(QCT) (if-vlan70)#ip ospf cost 32
(QCT) (if-vlan70)#exit
(QCT) (Config)#interface vlan 80
(QCT) (if-vlan80)#ip ospf area 0.0.0.2
(QCT) (if-vlan80)#ip ospf cost 64
(QCT) (if-vlan80)#exit
(QCT) (Config)#interface vlan 90
(QCT) (if-vlan90)#ip ospf area 0.0.0.2
(QCT) (if-vlan90)#ip ospf cost 64
(QCT) (if-vlan90)#exit
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