NAT Rules on VHUB

Hi @Rodrigo R ,

Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.
I understand that you would like to create a NAT mapping in such a way that 0.0.0.0/0 -----------> Specific external IP range.

With Static NAT,

• You will be required to match the number of available IP addresses in Internal Mappings to the number of available IP addresses in External Mappings.
• So, having 0.0.0.0/0 (Any range) as Internal Mapping, you will not be able to map it to any other range in External (As all available range is already used)

With Dynamic NAT,

• The maximum address range you can specify is of "/1" range.
• This means, you can either have 0.0.0.0/1 or 128.0.0.0/1 as the maximum address range.
• You can either use one of the above, depending upon your Azure Address ranges or both in a Connection and NAT it to a specific Range
• Please note if you are planning to use both of them, then the External Mapping should be non-overlapping with each other.

Refer : About NAT on Azure VPN Gateway

Please let me know if there are any queries on the same.

Cheers,
Kapil

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