About Using the Secure Client with PAC Files
- The Cisco Secure Client sends the username and IP of the user device for authentication to Secure Access. If authenticated, the user device can download the Secure Access PAC file or the organization's custom PAC files.
- Secure Access PAC file—After you add bypass domains in Secure Access, you can download the Secure Access PAC file that includes the configured bypass domains. Then, when you deploy the Secure Access PAC file on the user device's browser, the browser and the Secure Client support the same bypass domains that are configured in Secure Access.
- Custom PAC files—Unless you add bypass domains to a custom PAC file manually or create the custom PAC file from the Secure Access PAC file, the custom PAC file does not include the bypass domains that are configured in Secure Access. When you deploy a custom PAC file on the user device's browser, the browser only supports any bypass domains that you add to the custom PAC file.
For information about configuring bypass domains, see Manage Internet Security Bypass.