Ken Shmidheiser wrote: > It's been quiet, so here is a little challenge: > Does anyone know how to covert an ethernet MAC address to the > dotted IP form, i.e.: > 00:50:e4:00:55:31 -> 192.168.1.100 > I know the Unix command arp is sometimes used in such conversions, > but I'm wondering if it can be calculated with math. You're kidding, right? The MAC address is (actually or conceptually) in ROM, but the associated IP address is either dynamic or statically configurable, so there cannot be a way of calculating one from the other with math. Robert P.