Spectrum for UDP: DDoS protection and firewalling for unreliable protocols
Mar 20, 2019Achiel van der Mandele
Summary
This post introduces Spectrum for UDP, extending Cloudflare's DDoS protection and IP firewalling capabilities to UDP-based services. It highlights the challenges of securing UDP applications and introduces a custom 'Simple Proxy Protocol' to enable origins to retrieve client IP information, similar to the Proxy Protocol for TCP. This expands the scope of Spectrum beyond TCP to encompass a wider range of applications, including gaming and custom protocols.
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