What type of traffic does Z-Tunnel 1.0 intercept?

Z-Tunnel 1.0 is designed to intercept network layer traffic primarily on standard web ports, specifically port 80 (HTTP) and port 443 (HTTPS). This functionality allows it to effectively manage and secure user traffic without requiring complex configurations for various applications. By focusing on these ports, Z-Tunnel streamlines the routing of web-bound traffic securely through the Zscaler cloud, ensuring that both unencrypted and encrypted traffic can be routed through Zscaler’s security and policy enforcement mechanisms.

The design of Z-Tunnel 1.0 is such that it is specifically optimized for intercepting web traffic, making it less effective for non-web traffic or other application layer protocols, which is where the other options fall short in capturing the main functionality of Z-Tunnel 1.0. For instance, port 21 is associated with FTP traffic and isn’t typically managed by Z-Tunnel in its standard operation, while intercepting all traffic indiscriminately (option C) would defeat the purpose of targeted management and security measures. Additionally, limiting its functionality to local proxies (option D) does not capture the broader scope of how Z-Tunnel 1.0 manages traffic across different devices and networks.