vxSniffer is a Network monitoring tool for Windows CE-based devices. It has the following features: User defined filtering capability. Monitor only the information you need Filter by source/destination IP address, MAC, TCP port or UDP port. View summary and detail packet data. Save trace packets for later analysis. Text file format which can be viewed locally or on the desktop PC. Ethereal / Libpcap / Tcpdump format for use by specialized desktop software. View data while capturing packets. Prevents loss of critical packets Operates on all Handheld 2000 HPCs, Pocket PC, Pocket PC 2002 and Windows Mobile 2003.