What kind of applications would typically require a known source IP when using ZIA?

Applications that restrict client IP typically require a known source IP when using Zscaler Internet Access (ZIA). This is because certain applications implement security measures that only allow access to specific IP addresses or ranges. When ZIA is in use, the user's traffic is routed through Zscaler's cloud, which means the original source IP address is masked.

If an application has restrictions based on source IP addresses, it will deny access to any requests coming from an unexpected IP, such as those originating from Zscaler. Therefore, for a seamless experience with such applications, having a known source IP is essential. This enables the application to recognize the user or the client's network and allow legitimate requests to pass through without interruption.

Other types of applications, while important, do not necessarily have this specific requirement regarding source IP. High bandwidth applications may focus more on performance and throughput than on IP restrictions. Localized network apps may function well within their dedicated infrastructure and not rely on the globally routed nature of ZIA. Cloud-native applications, while they may operate well with ZIA in place, do not typically enforce client IP restrictions in the same way.