topic Prisma SD WAN and Zscaler in Prisma SD-WAN Discussions

Prisma SD WAN and Zscaler

Amod_Darshane_CDW — Mon, 31 Jul 2023 17:01:00 GMT

With the Zscaler client already installed on computers, what are the available options not to send the traffic from an endpoint to the Zscaler VPN tunnel (IPSec or GRE) when an endpoint is in the office?

What ends up happening is the endpoint is tunneling to Zscaler via an installed app, and the same traffic is again being tunneled and sent to the nearest Zscaler node on an IPSec or GRE overlay.

Installed app is the preferred way of securing the traffic as per the customer. Please advise a solution.

Re: Prisma SD WAN and Zscaler

PavelK — Thu, 07 Sep 2023 03:23:57 GMT

Hello @Amod_Darshane_CDW

thanks for posting.

From your description is sounds like you have Prisma SD-WAN integrated with Zscaler ZIA for internet breakout and looking into configuring local breakout for ZCC clients instead of sending ZCC traffic through SD-WAN tunnels?

I would get destination addresses of all Zscaler Public Service Edge (Enforcement nodes in this link: https://config.zscaler.com/zscaler.net/cenr) and configure local breakout policy (Direct Internet Access) for all the traffic with these IP addresses as destination.

Kind Regards

Pavel

Re: Prisma SD WAN and Zscaler

marharris — Tue, 16 Sep 2025 23:33:11 GMT

An alternative method is to disable the ZCC client when on a known network designated by the DNS Server, IP Address/Subnet, or a designated IP Address by configuring the "Action on Trusted Network" option in the Profile assigned to the applicable ZCC users. You can also specify the local network subnet as a "Trusted Network" in the ZCC Admin Console, and set the Action on Trusted Network to "None".

None: On detection of trusted network, Zscaler client connector “turns off? and does nothing. “On trusted network? message is displayed. All traffic is sent direct.

Three other options exist, but based on the definition of the None parameter, it sounds like this would allow the traffic to traverse your Prisma SDWAN as standard outbound traffic.