Lanbench - [cracked]

LANBench is a free, lightweight, and portable utility designed specifically to benchmark the throughput performance of a Local Area Network (LAN) between two computers. It is a highly focused tool, optimized for minimal CPU overhead to ensure that results reflect pure network performance rather than local system bottlenecks. Key Performance Features

Typical Test Flow:

1. Client connects to server.
2. Handshake exchanges test parameters (duration, buffer size, direction).
3. For a "send" test: Client pumps data to server as fast as possible. Server acknowledges only periodically or uses a sliding window to avoid ACK storms.
4. For a "bidirectional" test: Both endpoints send simultaneously.
5. At test end, client calculates average bandwidth, peak bandwidth, and often packet loss or retransmission counts (if TCP is used).

lanbench -s -p 5001

Domain computer shown connected to work, not domain, network LANBench

Operating Modes: Requires the software to be running on both ends of the connection: one system acts as a Server (listening on port 8988) and the other as a Client.  Key Features  LANBench is a free, lightweight, and portable utility

—meant only for phones—was put to the test. Everyone said it would fail. But LANBench showed a steady 900 Mbps [5]. The "lowly" phone wire was over-engineered and outperformed the brand-new switch. In the end, Client connects to server

lanbench -c -p 8080 -b 65536 -i 1000

LANBench: The Ultimate Lightweight TCP Network Benchmark Utility