The Telnet model

TelnetNet is similar to HTTPNet, but clients maintain telnet sessions to the server. The server echoes every character (in uppercase, to make it more interesting, and prints control characters in a readable form). Telnet clients are simulated except one, which is a proxy for a real-life client. By telnetting to localhost, port 4242 you can send your own keypresses over the simulated network to the simulated server.

To try:

It is also possible to stop the simulation when a packet is underway, and peek into it.

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