Many-to-Many NAT (Both Direction)

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Many-to-Many NAT (Both Direction)

L1 Bithead

Hi Everyone, 


I am struggling to solve a problem NAT issue and need some help. I need to configure May-to-Many NAT on Palo Alto Firewall  between two data centers. I have three /25 IPv4 subnets which needs to be mapped to three /25 subnets (subnet to subnet basis if not one to one IP basis) and three IPv6 /40 subnets needs same treatment. Traffic is expected to come from both direction inside to outside and outside to inside on specified TCP, UDP and ICMP ports. I have PA3220 which has been upgraded to PAN OS 9.0 and I will applicate if you can suggest best way to achieve this? Do I need to consider any resource limitation as I have three /25 IPv4 and three /40 IPv6 subnets which can overwhelm the resource? 





Cyber Elite
Cyber Elite


How are the two data centers connected? Just curious as to why you need the NAT?



Yes they are connected but part of Migration work and removing Overlapping addresses requires NAT. 

Thank you for the prompt reply. I will check your suggested solution. In the meantime please could you tell me if it possible to solve by NAT or its impractical?  

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