On Wed, December 8, 2004 1:35 am, Jonathan Berry said: > I'm not familiar with this notation for IP ranges. What exactly does > the "/24" or "/8" mean? It's obviously some kind of mask. How does > it correlate to a net mask? Hi Jonathan, It's known as CIDR notation (Classless Inter Domain Routing) and the number after the slash represents the number of bits in the network portion of the IP addy. So /8 = 255.0.0.0, and /24 = 255.255.255.0 etc.... Sean