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Totally Stubby Area Configuration
179
RouterC
interface Ethernet0
ip address 10.1.2.2 255.255.255.0
!
router ospf 10
network 10.0.0.0 0.255.255.255 area 25
area 25 stub
RouterD
interface Ethernet0
ip address 10.1.1.2 255.255.255.0
!
router ospf 10
network 10.0.0.0 0.255.255.255 area 25
area 25 stub
Notice that we only have to change, from the previous example, the con-
figuration of RouterB. We simply add the no-summary argument to the area
area-id stub
command:
RouterB(config)#router ospf 10
where 10 is the Process ID.
RouterB(config-router)#network 1.0.0.0 0.255.255.255 area 0
where 1.0.0.0 0.255.255.255 is the network and wildcard mask of a net-
work connected to RouterB and where 0 is the area that network 1.1.1.0/24
is a member of.
RouterB(config-router)#network 10.0.0.0 0.255.255.255 area 25
where 10.0.0.0 0.255.255.255 is a summary network and wildcard mask
of networks connected to RouterB and where 25 is the area that networks
10.1.1.0/24 and 10.1.2.0/24 are members of.
RouterB(config-router)#area 25 stub no-summary
where the no-summary argument makes Area 25 totally stubby.
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