Hello, On Fri, May 26, 2023 at 09:07:23PM -0400, Greg Wooledge wrote: > On Sat, May 27, 2023 at 12:59:59AM +0000, Andy Smith wrote: > > On Mon, May 22, 2023 at 08:26:47PM -0400, Dan Ritter wrote: > > > No. What's the netmask if you have: > > > > > > IP: 192.168.255.132 > > > broadcast: 192.168.255.255 ? > > > > It's 255.255.0.0. > > > > Specifying a broadcast address does completely define the network > > range. If you know that 192.168.255.255 is the broadcast then the > > network can only be 192.168.0.0/16. > > Dan's example was carefully chosen so that this is not true. The last > 16 bits of the broadcast address are all 1. This means the network > part of the address could be anywhere from 16 to 31 bits. All are > equally possible.
Yes, sorry, of course you (and Dan) are correct. There is no reason why it could not be describing, for example, 192.168.255.0/24 (255.255.255.0 netmask). That will teach me to not write emails at 2am! Cheers, Andy -- https://bitfolk.com/ -- No-nonsense VPS hosting
