Source NAT Configuration Overview

The main configuration tasks for source NAT are as follows:

1. Configure a source NAT address pool that aligns with your network and security requirements (not needed for interface NAT).
2. Configure pool utilization alarms (optional)—Specify thresholds for pool utilization.
3. Configure address persistent (optional)—Ensures that the same IP address is assigned from the source NAT pool to a host for multiple concurrent sessions.
4. Configure source NAT rules that align with your network and security requirements.
5. Configure NAT proxy ARP entries for IP addresses in the same subnet of the ingress interface.

Related Topics

• Junos OS Feature Support Reference for SRX Series and J Series Devices
• Example: Configuring Source NAT for Egress Interface Translation
• Example: Configuring Source NAT for Single Address Translation
• Example: Configuring Source NAT for Multiple Addresses with PAT
• Example: Configuring Source NAT for Multiple Addresses without PAT
• Example: Configuring Source NAT with Address Shifting
• Example: Configuring Source NAT with Multiple Rules
• Example: Configuring Source and Destination NAT Translations
• Verifying NAT Configuration