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NAT does not translate IP addresses when NSX Edge firewall is disabled (2093153)

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Symptoms

  • Source NAT with a translated IP range is configured on an NSX for vSphere Edge gateway.
  • Edge gateway firewall service is disabled
  • No traffic passes through the Edge gateway from the internal virtual machines.

Cause

When the Edge gateway firewall is disabled, all stateful services also are disabled if the Edge device is a 6.0 Extra Large or 6.1 and 6.2 Edge device.

Note:
When using vShield Edge and vCloud Director, disabling the firewall from the vCloud Director UI creates an allow any/any rule on the Edge device.  

Resolution

This is an expected behavior since NAT is dependent on firewall and firewall service is disabled.

To resolve this issue:
  • Enable the Edge gateway firewall to run stateful service such as NAT.

For steps on enabling the Edge Gateway Firewall, refer to the Working with Edge Firewall section in the NSX for vSphere Administration Guide.

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