SoftPerfect WiFi Guard Portable

SoftPerfect WiFi Guard Portable is an efficient network monitor that has the means to detect intruders that might have accessed your WiFi connections unauthorized.
The importance of such an utility is undeniable; it can keep strangers from using your Internet connection without your knowledge, while protecting you from attackers that can potentially steal personal information or harm your computer.
SoftPerfect WiFi Guard Portable targets WiFi networks in particular, keeping tabs on existing connected addresses, as well as on devices that are unknown. When such connections are detected, you are notified immediately so as to take counterattack measures.
It is a portable application, designed as a replica of SoftPerfect WiFi Guard, the installer edition. As opposed to the later, the to-go version does not require installation, therefore it is suited for USB use as well.
Wrapped up inside a simple, yet intuitive interface, the program can be instructed to start a scan right away, which will result in a list of all the connected IP addresses, together with their MAC, host name and response time.
By default, the application performs a rescan every 30 minutes, but this parameter can be tweaked from the Settings window to match your preferences (note that it cannot be more than one hour). Also from this section, you will be able to set the program to scan multiple devices at the same time.
Moreover, you can define a custom IP address range that you want to restrict the scan to and to choose your own notification sound for the detection of unauthorized connections.
All in all, SoftPerfect WiFi Guard Portable is perfect for monitoring WiFi networks, but the main downside is that it does not sport the means to block IP addresses. Such a feature would make it complete.