What is the rule order in Zscaler?

In Zscaler's security framework, understanding the sequence in which policies and rules are evaluated is crucial for effective configuration and enforcement. Here's an overview of the rule evaluation order:

1. Client Forwarding Policy

The Client Forwarding Policy determines whether traffic is directed through Zscaler's services or bypassed. This decision is made on the client side, establishing the initial handling of traffic.

2. Access Policy

For traffic routed through Zscaler Private Access (ZPA), the Access Policy specifies the conditions under which connections are permitted or denied. It evaluates criteria such as user identity, application, and device posture to enforce access controls.

3. Firewall Policy

The Firewall Policy applies to traffic passing through Zscaler Internet Access (ZIA). It assesses rules based on factors like source and destination IP addresses, ports, and protocols to allow or block traffic accordingly.

4. URL Filtering Policy

This policy examines web requests to determine if the accessed URLs align with organizational policies. It categorizes URLs and enforces rules to permit or restrict access based on content categories.

5. Cloud App Control Policy

Cloud App Control rules are evaluated in ascending numerical order within their respective categories. They manage access to specific cloud applications, enforcing controls based on application type and function.

By comprehending this sequence, administrators can effectively design and implement policies that align with organizational security requirements, ensuring that each layer of control functions as intended.