Hi, You can use ipcalc for this purpose. man ipcalc On Saturday 15 October 2005 01:22, Jeff Vian wrote: > On Fri, 2005-10-14 at 15:24 -0400, Ki Il Song wrote: > > The subnet mask is: 255.255.255.248 > > The ip address i want to assign is: 70.88.225.1 > > > > So what should my broadcast and network addresses be? > > broadcast of 70.88.255.7 > network of 70.88.255.0 > > > For assistance in the future a quick google search for "subnet > calculator netmask" yielded over 16,000 results with the first page > including at least 7 on-line calculators that can determine the answer > to your question. > > > Regards, > > Ki Song