Hi Pongsaphat,
Keep in mind that Web Isolation's management GUI has a specific wizard that will help you creating the downstream proxy and upstream proxy CPL.
The best practice is using it, rather than writing the CPL yourself.
Thank you.
Regards,
Lorenzo Ungaro
Technical Support Engineer | 8:00-16:00 (CEST) Monday to Friday
Symantec Network Protection
https://support.symantec.com/en_US/contact-support.html
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