Cisco ONS 15454 DWDM Reference Manual page 594

15.3.6 DCN Case Study 3: Linear Topology with DCN Connections on Both Ends Using OSPF Routing
!
interface Ethernet2/0
ip address 192.168.10.1 255.255.255.0
no ip directed-broadcast
!
interface Loopback0
ip address 1.1.1.1 255.255.255.0
no ip directed-broadcast
!
GRE tunnel interface configuration:
interface Tunnel110
ip address 192.168.110.1 255.255.255.0
tunnel source Ethernet2/0
tunnel destination 192.168.10.2
!
interface Tunnel210
ip address 192.168.210.1 255.255.255.0
tunnel source Ethernet1/0
tunnel destination 192.168.20.2
!
OSPF routing configuration:
router ospf 1
network 1.1.1.0 0.0.0.255 area 0
network 10.0.0.0 0.255.255.255 area 0
network 192.168.110.0 0.0.0.255 area 100
network 192.168.210.0 0.0.0.255 area 200
area 100 virtual-link 192.168.100.80
area 200 virtual-link 192.168.100.77
!
Note that the OSPF virtual link to the end ONS 15454s is created to connect the DCC/OSC/GCC OSPF
area 1 to the backbone area 0. No static routes are defined on the NOC router.
15.3.6.1.2 Router 1 IP Configuration
Interface configuration:
interface Ethernet0/0
ip address 192.168.10.2 255.255.255.0
no ip directed-broadcast
!
interface Ethernet1/0
ip address 192.168.100.1 255.255.255.0
no ip directed-broadcast
GRE tunnel interface configuration:
interface Tunnel110
ip address 192.168.110.2 255.255.255.0
tunnel source Ethernet0/0
tunnel destination 192.168.10.1
!
OSPF and static routing configuration:
router ospf 1
log-adjacency-changes
network 192.168.100.0 0.0.0.255 area 100
network 192.168.110.0 0.0.0.255 area 100
!
Cisco ONS 15454 DWDM Reference Manual, R8.5
15-32
Chapter 15 Management Network Connectivity
78-18343-02