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Martin Hope
c9957453
Asked: 2024-10-29 22:20:13 +0800 CST
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I am running a Linux VM on Azure (IaaS) which is providing an SFTP service to the Internet.

I am migrating this service back to on-premises, through a firewall on a different public IP address.

Sadly, many customers are connecting to this service via public IP address (as opposed to FQDN).

  • Linux VM has public IP 1.1.1.1 right on its NIC.
  • Firewall's public IP is 2.2.2.2.

I want to redirect traffic to the on-premises firewall.

Is there an Azure service/resource that can take inbound connections to 1.1.1.1, then NAT the destination IP to 2.2.2.2 and then also NAT the source IP to 1.1.1.1 or another public IP (like 3.3.3.3) on that service/resource?

Diagram

Thanks!

azure-networking