An IP stack has to expose basic IP functionality, not just responding to pings. Can it, for e.g., do IP forwarding? (that would be an awesome full fledged rout

An IP stack has to expose basic IP functionality, not just responding to pings. Can it, for e.g., do IP forwarding? (that would be an awesome full fledged router) IP checksums? Also, this program is vulnerable to the classic Ping of Death attack. ;) http://en.wikipedia.org/wiki/Ping_of_death http://en.wikipedia.org/wiki/Ping_of_death