Layer Co., Ltd.

AirCapture is a shareware wireless packet monitor designed for 802.11b Wi-Fi networks. It decodes and captures wireless packets typically unseen in the air, allowing for visual monitoring of WLAN activities.

PacScope is a shareware that monitors and visualizes network packets on LAN or Internet through Ethernet. It's a powerful integrated network analyzer with a Sniffer type of operation. The software also boasts a new Precision Capture Timer feature.