OSPF over ethernet example

RTA ospfd.conf
interface eth0
interface eth1
router ospf
auto-cost reference-bandwidth 1000
passive-interface eth1
network 10.0.0.0/24 area 0
network 10.0.1.0/24 area 0
RTB ospfd.conf
interface eth0
interface eth1
router ospf
auto-cost reference-bandwidth 1000
passive-interface eth1
network 10.0.0.0/24 area 0
network 10.0.2.0/24 area 0
RTC ospfd.conf
interface eth0
interface eth1
router ospf
auto-cost reference-bandwidth 1000
passive-interface eth1
network 10.0.0.0/24 area 0
network 10.0.3.0/24 area 0