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?
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