Two SMTP servers configured as public mail servers, each with a private IP address. In Fireware versions prior to 11.4.1, the static NAT configuration would look slightly different. The static NAT configuration shown in this example is for a Firebox that uses Fireware OS v11.5.x or higher. nat_1-to-1_mail.xml - Example configuration file for 1-to-1 NAT.nat_snat_dnat_mail.xml - Example configuration file for Static NAT and Dynamic NAT.These configuration files are included in the nat_mail_example_configs.zip file. There are two configuration files that accompany this configuration example. To examine the details of each example configuration file, you can open it with Policy Manager. Option 2 - Use 1-to-1 NAT for both inbound and outbound trafficįor your reference, we have included example configuration files with this document.Option 1 - Use Static NAT for inbound traffic and Dynamic NAT for outbound traffic.This configuration example demonstrates two different types of NAT configuration that can be used to translate the public IP addresses of the email servers to the corresponding private IP addresses for inbound and outbound traffic The IP addresses we want to translate for each mail server are: Mail Server The goal in this example is to enable traffic to flow between the email servers behind the Firebox and the public Internet.

Mail Server 2 connected to the optional network

Mail Server 1 connected to the optional network In the example configuration files, the Firebox and the email servers use these IP addresses: Interface or Device In this use case, the two SMTP email servers have private IP addresses and are located behind the Firebox on the optional network. Additional configuration settings could be necessary, or more appropriate, for your network environment. This configuration example is provided as a guide. This use case includes two configuration options to demonstrate how you can use NAT to map public IP addresses to servers behind your Firebox. The organization needs to make sure that these two servers can exchange email with servers outside the local network, even though they have private IP addresses. In this use case, an organization has two mail servers with private IP addresses on the optional network of a Firebox. Use NAT for Public Access to Servers with Private IP Addresses on the Private NetworkĮxample configuration files created with - WSM v11.10.1

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