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Cisco Secure Access Help Secure Access NAT as a Service Best Practices

Last updated: Aug 07, 2025

Best Practices

  • You cannot combine the NATaaS IP address range (151.186.176.0/20) with the Secure Access IP address range (151.186.192.0/20) into a larger /19 range. One range is at the end of the larger first block and the other range is at the beginning of the larger second block.