Why Do I Need DNAT?

In a public NAT gateway, DNAT enables servers in a VPC to share an EIP to provide services accessible from the Internet through IP address mapping or port mapping. For details, see Adding a DNAT Rule.

In a private NAT gateway, DNAT enables servers, regardless of if they are in the same AZ, to share the same transit IP address to provide services accessible from on-premises data centers or other VPCs. For details, see Adding a DNAT Rule.

Parent topic: DNAT Rules

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