There are alternative traffic forwarding methods to the Client Connector that leverage edge forwarding protocols to connect sites to the Zero Trust Exchange. Two of these protocols are:
The correct answer is A. IPSec and GRE. In the Zscaler Internet Access (ZIA) traffic forwarding architecture, branch offices and sites can send traffic to the Zero Trust Exchange through several forwarding methods. The reference architecture explicitly identifies GRE tunnels and IPsec tunnels as supported methods for forwarding traffic from branch routers, SD-WAN devices, and similar site infrastructure to the nearest ZIA Service Edge.
This is different from Client Connector , which is typically used for individual endpoints such as laptops and mobile devices. For fixed locations, edge-based forwarding protocols are preferred because they allow the site’s egress traffic to be securely transported to Zscaler without requiring the endpoint client on every device. The other options are incorrect because Single Sign-On is an identity function, not a traffic forwarding protocol; Security Appliance and Router are device categories, not protocols; and IKEv2 is associated with IPsec negotiation rather than being presented here as the pair of branch forwarding methods in the ZIA architecture. Therefore, the two protocols specifically called out as alternative forwarding methods to Client Connector are IPSec and GRE .
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