On Tue, 7 Dec 2004 20:47:02 -0600, Mike Klinke <lsomike@xxxxxxxxxx> wrote: > On Tuesday 07 December 2004 20:04, Rick Stevens wrote: > > > Another that bears blocking completely is 64.0.0.0/24 as its > > > 100% spam of the non-edible variety. > > > > Whoa, buddy. The entire 64.0.0.0/8 is NOT a spam source. We > > have a /19 in that space and we're not spammers. > > Rick, note he said /24 (256 nodes) not /8 (16+ million nodes) > > Regards, Mike Klinke Hi, 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? Thanks, Jonathan
