# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2010-11-19 09:58:04 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/5560431879917569) RT @bck: An IP 'stack' written in 139 bytes of C. Sure, it only responds to pings, but still - http://j.mp/bw4htu