I wouldn't have said anything if it wasn't a security tool. The tool keeping you safe shouldn't add risk (all the bug classes commonly found in C programs) to y

I wouldn't have said anything if it wasn't a security tool. The tool keeping you safe shouldn't add risk (all the bug classes commonly found in C programs) to your security posture. You can write reliable programs in golang and rust. I only mentioned other ways of avoiding mitm to inform readers. Your program fills a lot of gaps. One last tip - have you thought of supporting IPv6 ND and RA messages too? Those technically deprecate arp :(