A network debugging tool: open a TCP client, a TCP server, a UDP socket or a multicast group, then send and receive data by hand while watching the traffic in a log.

Features:

• TCP client, TCP server with a client list, UDP and UDP multicast
• HEX and text modes for both sending and receiving
• Timestamps, sender addresses, pause, receive to file
• Sending from a file with a progress bar, loop sending by interval
• Sent and received byte counters
• Changing the IPv4 address of a local network interface
• Russian and English interface

The network engine is portable C11 with no Qt dependency, so the same code runs headless on embedded boards.