HARTMANN Group Simplifies Cloud Deploymentwith Zscaler

As a future-facing company, the Group sought an innovative solution to enhance its network security while improving efficiency and lowering costs. It introduced Microsoft 365 to reduce administrative outlay for its IT department. During the conversion process however, it quickly became apparent that the bandwidth capacity at some locations would cause performance bottlenecks in cloud access and that mobile employee access lacked adequate security. The Group needed to replace the security hardware at each location with a cloud-delivered platform to reduce the administrative outlay.

The solution was a complete digital transformation. The Group researched information at Gartner’s Secure Web Gateway Report, and determined that the best approach would be to transition to the cloud-delivered internet security platform from Zscaler.

Stefan Staub, IT consultant for security & LAN at the HARTMANN Group, reviewed the performance of the service and IT streamlining requirements within the scope of a proof of concept (POC): “We were facing the challenge that many locations were connected to the corporate headquarters with low bandwidth connections,” said Staub. “Instead of increasing the bandwidth, which would have involved replacing the security hardware, we decided to use a solution from the cloud.”

Once it was clear that the security platform could both solve the architectural issues around bandwidth performance through the use of local internet breakouts, and that road warriors could be integrated, the Group decided that the Zscaler Zero Trust Exchange was the best solution.

The high level of integration provided by the Zscaler Internet Access, combined with its 100% cloud-delivered approach to internet security, dramatically reduced the administrative burden involved in maintaining hardware and software. Through behavioral analysis, Zscaler detects and blocks traditional and emerging malware, including viruses, botnets, zero day attacks, and more—entirely in the cloud. With this solution, time-consuming manual updates and upgrades are a thing of the past. Modern security policies can be created to provide secure network access for mobile users. With only the need to configure client settings, and because the PAC file is hosted in the Zscaler cloud, much of the work related to provisioning local instances is eliminated as well.

By switching to Microsoft 365 with each email having to go through the cloud and the introduction of SharePoint, the Group was aware of higher bandwidth requirements. However, there was little insight into how the implementation would affect user experience with regards to the higher flow of data traffic entering the cloud. As a result, several locations with low bandwidth capacities experienced poor performance. Zscaler fixed this problem immediately by making it possible for data traffic to be sent directly from the router at each location to the cloud using a GRE tunnel, thereby reducing the burden on the connections, and eliminating the need for costly investments in bandwidth and hardware.

The HARTMANN Group now uses GRE tunnels to transmit Microsoft 365 data traffic securely to the end user. The firewall feature of the Zscaler Internet Access renders many of the Group’s on-premises firewalls unnecessary, so it simplifies administration. “We would miss the functionality of the (next-generation firewall) if it were no longer here. This feature has helped us a lot, especially with the rollout of Microsoft 365,” said Maximilian Plitz, Technical Security Service Head and IT Consultant for Security & LAN at the HARTMANN Group. The IT team can now dispense with the outlay for implementation work at several locations, as well as the ongoing maintenance required during normal operation.