Please help me find the suitable range for subnet the iplast

Please help me find the suitable range for subnet the ip.(last ip of host,last ip of subnet,BC)

Solution

Firstly identify the class type of given address..

class A -> 1.0.0.1 to 126.255.255.254
class B -> 128.1.0.1 to 191.255.255.254
class C -> 192.0.1.1 to 223.255.254.254
class D -> 224.0.0.0 to 239.255.255.255
class E-> 240.0.0.0 to 254.255.255.254

Our 192 address is in range class C, so subnetting class C is

192.0.0.0 255.255.255.224 host address range 1 to 30
192.0.0.32 255.255.255.224 host address range 33 to 62
192.0.0.64 255.255.255.224 host address range 65 to 94
192.0.0.96 255.255.255.224 host address range 97 to 126
192.0.0.128 255.255.255.224 host address range 129 to 158
192.0.0.160 255.255.255.224 host address range 161 to 190
192.0.0.192 255.255.255.224 host address range 193 to 222
192.0.0.224 255.255.255.224 host address range 225 to 254

last ip of subnet -> 255.255.255.224

last ip of host -> 255.255.255.224