[bonsai@mainserver bonsai]$ipcalc  -b -m -n 200.18.52.0/26
NETMASK=255.255.255.192
BROADCAST=200.18.52.63
NETWORK=200.18.52.0
[bonsai@mainserver bonsai]$ipcalc  -b -m -n 200.18.52.1/27
NETMASK=255.255.255.224
BROADCAST=200.18.52.31
NETWORK=200.18.52.0
[bonsai@mainserver bonsai]$ipcalc  -b -m -n 200.18.52.32/28
NETMASK=255.255.255.240
BROADCAST=200.18.52.47
NETWORK=200.18.52.32
[bonsai@mainserver bonsai]$ipcalc  -b -m -n 200.18.52.48/28
NETMASK=255.255.255.240
BROADCAST=200.18.52.63
NETWORK=200.18.52.48
[bonsai@mainserver bonsai]$ipcalc  -b -m -n 200.18.52.64/28
NETMASK=255.255.255.240
BROADCAST=200.18.52.79
NETWORK=200.18.52.64
[bonsai@mainserver bonsai]$