On Tue, May 23, 2023 at 08:24:10AM +0800, Tom Reed wrote: > Sorry for my newbie question too. > > If I know the network addr: 192.168.1.0 > And know the broadcast addr: 192.168.1.255 > Then I should have the possibility to cal the netmask addr: 255.255.255.0 > > Isn't it?
Not necessarily. PROBABLY yes, but you can't be certain. The netmask in this example could be either /23 or /24. Why are you asking these questions? What's your ACTUAL issue?
