You can visit my blog for more details about the attack.
Or download the following files:
You must define one LoopBack interface on the R1 router with the following specifications:
IP : 192.168.200.20
SubnetMask : 255.255.255.255
In this attack, we will forge a message of R1 router then the rogue message sends to the R2 router and the LoopBack interface enter into the OSPF routing domain.