December 2025 Rustacean meetup

December 2025 Rustacean meetup

Pratham

Building a userspace TCP/IP stack

Submitted Nov 28, 2025

This talk will cover the implementation of a TCP/IP stack in userspace, covering usage of Linux TUN/TAP devices, handling layer 3 IP packets, and modelling a TCP state machine to handle the 3-way handshake, sliding window, packet retransmissions etc. in Rust

Talk length: ~30 min

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