!! R1
en
conf t
hostname R1

router ospf 1
 router-id 1.1.1.1 
 network 192.168.0.0 0.0.255.255 area 0
 passive-interface g0/0
exit

do write
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configure R2 yourself hostname(R2) & (RID : 2.2.2.2)
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do show ip route
do show ip ospf neighbor
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!! now turn off the R2 and check the neighbor table in R1