Planning to use custom proxy PAC for my branch users.
In my branch network, planning to use internet break out for internet access. The users will be in LAN & their PC will be configured for using Proxy PAC.
With Proxy PAC they will reach Zscaler via Internet break out.
So nearly 500 users will be sharing the same public IP from the branch internet.
Question: Will I be able to achieve SSO when the user tries to access internet.
Possible option: ADFS or Azure AD
Let me know if I can achieve SSO