# APuP Revamping Wi-Fi with a Hundred-Line Hack
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Source: [https://fosdem.org/2025/schedule/event/fosdem-2025-5195-apup-a-hundred-line-hack-to-make-wi-fi-great-again/](https://fosdem.org/2025/schedule/event/fosdem-2025-5195-apup-a-hundred-line-hack-to-make-wi-fi-great-again/)
<video src="https://video.fosdem.org/2025/k1105/fosdem-2025-5195-apup-a-hundred-line-hack-to-make-wi-fi-great-again.av1.webm" controls></video>
## Summary & Highlights:
**Introduction to APuP**
APuP is a novel approach to Wi-Fi networking that allows access points (APs) to communicate directly with each other. This innovation addresses the limitations of traditional Wi-Fi setups that rely heavily on complex configurations and often fail to ensure connectivity between all nodes in a network. By modifying the hostapd code, APuP enables seamless AP-to-AP communication without requiring changes to the kernel or drivers.
**Historical Context and Development**
Historically, various methods like ad-hoc mode and 802.11s were used to improve Wi-Fi connectivity, but they faced significant limitations and eventually became obsolete. APuP emerged as a solution by leveraging the well-supported AP mode, allowing for direct communication between APs. This development is particularly significant for open-source platforms like OpenWrt and DD-WRT, which have already integrated APuP into their systems.
**Technical Insights and Implementation**
The implementation of APuP involves treating beacons from other APs as association requests, using a straightforward modification of the hostapd code. This approach does not rely on driver changes, making it highly compatible with existing hardware. The code is designed to be easily maintainable and adaptable to future Wi-Fi standards.
**Performance and Community Adoption**
Initial tests of APuP show promising performance, with speeds comparable to traditional AP setups. The open-source community has been quick to adopt this innovation, with OpenWrt and DD-WRT incorporating it into their platforms. This widespread adoption highlights the community's interest in practical, sustainable solutions that enhance connectivity.
**Potential Impact on Eco-Social Transformation**
APuP has the potential to significantly impact eco-social transformation by enabling more efficient and accessible community networks. This technology can support sustainable development initiatives by reducing the need for extensive infrastructure and promoting community-driven connectivity solutions. The open-source nature of APuP ensures that it remains accessible and adaptable to various needs, aligning with the principles of eco-social design.
## Importance for an eco-social transformation
APuP is crucial for eco-social transformation as it facilitates the creation of decentralized, community-driven networks. This can enhance connectivity in underserved areas, supporting social equity and access to information. The open-source nature of APuP allows for widespread adoption and customization, making it a valuable tool for eco-social designers. Challenges include ensuring widespread hardware compatibility and overcoming resistance from established industry standards. Politically, advocating for standards that support such innovations can be crucial. Eco-social designers can leverage platforms like OpenWrt and DD-WRT to create tailored solutions for specific community needs, promoting sustainable and inclusive connectivity.
## Links
[OpenWrt](https://openwrt.org/)
[Hostapd GitLab Commit](https://gitlab.com/g10h4ck/hostap/-/commit/6bb15f81e6857989c0b722fc1a49275492114148)