I have this sample iptables script running on a box, and no matter what I try, I can't ping the ip address of the same box, from the same, that is, if I try, I get ...

Ping is not accurate, it uses the slow path and is unreliable. Routers tend to have rate limits on pings and respond to ICMP as low priority. As a result, my first hop claims upwards of 2ms during ...