Check Point have a nifty function called ‘ipcalc’ which displays network address, broadcast address, netmask and netmask prefix based upon input of an IP address/netmask.
Could prove useful if you need to verify broadcast and/or network address.

Syntax examples:

ipcalc 192.168.0.0/24 -bpmn
ipcalc 192.168.0.0 -m 255.255.255.0 -bpn

Gos