Errors Everywhere
Having too many SSIDs can be detrimental as it reduces the communication capabilities of the devices broadcasting Wi-Fi signals. Therefore, there is a limit to how many SSIDs can be created. While this is a commonly adopted configuration, defining separate passwords for each SSID can lead to numerous errors within the network. Often, this is compounded by the fact that all connected clients receive IP addresses from the same segment. In such cases, even a firewall fails to separate communication between devices; any client connected to the network can "see" everything else. For instance, in an office setting, a laptop using the guest SSID might communicate with a shared printer, significantly compromising the security of the system.
Another common practice is using VLANs for each SSID. This is a much better method, as it allows for easier and more effective control of traffic with firewall rules, preventing unauthorized access to internal networks. Unfortunately, if we need to change the password for any network, we still have to re-register all network devices. Understandably, everyone wants to avoid such time-consuming and unnecessary activities.
Another major issue is changing compromised passwords and the process of ensuring that every device receives the new passwords. For instance, in a company, it can be disruptive to have to change every password just to revoke access for a departing employee.
As with any similar issue, the key here lies in uniqueness.
Fortunately, thanks to the professionalism of most manufacturers, they have recognized such practical problems and come to our aid. This solution does not require additional investment and effectively addresses the challenges by utilizing the PPSK (Private PreShared Key) service.
It’s still a pre-shared key, so what makes it better?
When using PPSKs, clients connect to the same SSID but receive unique passwords. This means that if someone needs to be excluded from the network, you only need to delete their access. Additionally, it provides an extra layer of security, allowing you to assign VLAN segments independently of the number of SSIDs, with each user still having their unique password.
There’s no need for an external server either; the controller software or cloud service is sufficient for implementing PPSK.
Premium? Not at all!
The service is not expensive at all, and there’s no need to invest in premium devices. The TP-Link brand usually comes to mind as a manufacturer of more affordable equipment, and it indeed supports the PPSK feature! Of course, higher-end brands like Zyxel and Cambium Networks have also entered the arena.
Switch now and forget about the problems associated with passwords and re-registrations
