Worked on the firedancer-io/firedancer repository to enhance the reliability of network routing information by addressing a bug in Netlink message handling. Focused on system programming and networking in C, the developer implemented logic in fd_fib4_netlink to filter out RTM_F_CLONED messages and enforce strict routing table scope. This approach reduced irrelevant routing data and prevented misrouting by ensuring only messages from the expected routing table were processed. The solution was delivered with defensive checks, reviewed, and integrated to reinforce operational correctness, ultimately improving the stability of network data consumed by higher-level components without introducing additional risk to production systems.