Cisco Cisco IOS Software Release 12.0(22)S

The following configuration fragments show how to configure OSPF for interarea tunnels assuming that

Routers R1, Rx, and Ra are in OSPF Area 1

Routers Ra, Ry, and Rb are in OSPF Area 0

Routers Rb, Rz, and R2 are in OSPF Area 2

Router Ra is an ABR for Area 0 and Area 1

Router Rb is an ABR for Area 0 and Area 2

router ospf 1

 network 10.0.0.10 0.0.0.0 area 1

 network 135.10.0.0 0.0.255.255 area 1

 mpls traffic-eng router-id Loopback0

 mpls traffic-eng area 1

router ospf 1

 network 200.1.0.1 0.0.0.0 area 1

 network 135.10.0.0 0.0.255.255 area 1

 network 145.10.0.0 0.0.255.255 area 1

 mpls traffic-eng router-id Loopback0

 mpls traffic-eng area 1

Ra is an ABR for Area 0 and Area 1. Interface POS2/0 is in Area 1 and interface POS3/0 is in Area 0. 
The mpls traffic-eng area commands configure Ra for IGP TE updates for both areas.

router ospf 1

 network 200.2.0.2 0.0.0.0 area 0

 network 145.10.0.0 0.0.255.255 area 1

 network 155.10.0.0 0.0.255.255 area 0

 mpls traffic-eng router-id Loopback0

 mpls traffic-eng area 0

 mpls traffic-eng area 1

router ospf 1

 network 200.3.0.3 0.0.0.0 area 0

 network 155.10.0.0 0.0.255.255 area 0

 network 165.10.0.0 0.0.255.255 area 0

 mpls traffic-eng router-id Loopback0

 mpls traffic-eng area 0

Rb is an ABR for Area 0 and Area 2. Interface POS4/0 is in Area 0 and interface POS5/0 is in Area 2. 
The mpls traffic-eng area commands configure Rb for IGP TE updates for both areas.

network 200.4.0.4 0.0.0.0 area 0

 network 165.10.0.0 0.0.255.255 area 0

 network 175.10.0.0 0.0.255.255 area 2

 mpls traffic-eng router-id Loopback0

 mpls traffic-eng area 0

 mpls traffic-eng area 2