Configure OSPF neighbors for nonbroadcast networks on Cisco 8000 Series Routers.
Set up explicit OSPF neighbor relationships on nonbroadcast (NBMA) networks by using repeatable configuration steps.
Before you begin
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Ensure the network is fully meshed so every router connects directly, or via virtual circuits, to every other router.
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Decide whether your NBMA network will use broadcast or nonbroadcast mode.
Follow these steps to configure and verify OSPF areas and neighbours:
Procedure
Configure NBMA networks as either broadcast or nonbroadcast assumes that there are virtual circuits from every router to every router or fully meshed network.
Example:
Router# configure
Router(config)# router ospf 1
Router(config-ospf)# router-id 192.168.4.3
Router(config-ospf)# area 0
Router(config-ospf-ar)# network non-broadcast
Router(config-ospf-ar)# dead-interval 40
Router(config-ospf-ar)# hello-interval 10
Router(config-ospf-ar)# interface GigabitEthernet 0/2/0/0
Router(config-ospf-ar-if)# neighbor 10.20.20.1 priority 3 poll-interval 15
! or
Router(config-ospf-ar-if)# neighbor fe80::3203:a0ff:fe9d:f3fe
Router(config-ospf-ar-if)# exit
Router(config-ospf-ar)# commitThe router applies the OSPF configuration and establishes neighbor adjacencies on the nonbroadcast network segment.