Worked on enhancing networking capabilities in the rust-lang/libc repository by implementing new IPv6 and TTL constants specifically for the solarish and illumos platforms. Focused on improving standards compliance and cross-platform portability, the work centralized constants such as IPV6_HOPLIMIT, IPV6_MINHOPCOUNT, and IP_MINTTL, which streamline IPv6 hop limit handling and IP TTL control. This approach reduced platform-specific branching in downstream Rust code, making network programming more maintainable and robust. Leveraged expertise in Rust, network programming, and system programming to deliver a focused patch that addressed platform compatibility and improved the overall readiness of networking features for diverse environments.