Valid Host IDs of different Class Network
CCNA Articles - No Comments » - Posted on November, 17 at 9:19 am
Valid Host ID of Class A Network-
In the class A Network first byte of the IP address is assign to the network address and three remaining byte are used for the node addresses means we can see the format of the Class A address is-
network.node.node.node
The Class A network address is one byte long with the first bit of that byte is reserve and the seven remaining bits are used for addressing. The maximum number of Class A network that can be created is 128 because we justify by 27 or 128.The number of host that can define by the Class A address is 224 because the other three byte having 24 bits are reserve for the host part.
Example of the valid Class A host id is-
10.0.0.0-All host bit is off.
10.255.255.255-All host bits on is the broadcast address.
The valid hosts are the number in between the network address and the broadcast address .10.0.0.1 through 10.255.255.254 are the valid host.
Valid Host ID of Class B Network-
In the Class B Network first two byte of the IP address is assign to the network address and two remaining bytes are used for the node address means the format of Class B address-
network.network.node.node
The Class B network address reserve the first two bits of the first byte and the remaining bits are used for the addressing. The maximum number of the Class B network is 214 because the two bits are reserve in this Class and the number of host is 16,384.
Example of the valid Class B host id is-
172.16.0.0-All host bit is off.
172.16.255.255-All host bits on is the broadcast address.
The valid hosts are the number in between the network address and the broadcast address.172.16.0.1 through 172.16.255.254 are the valid host.
Valid Host ID of Class C Network-
In the Class C Network first three byte of the IP address is assign to the network address and one remaining byte are used for the node address means the format of Class C address-
network.network.network.node
The Class C network address reserve three bits of first octet means and the remaining bits are used for the addressing .The maximum number of the Class B network is 221 because the three bits are reserve in Class C addressing and the number of the hosts is 254.
Example of the valid Class C host id is-
192.168.100.0-All host bit is off
192.168.100.255-All host bits on is the broadcast address.
The valid hosts are the number in between the network address and the broadcast address.
192.168.100.1 through 192.168.100.254 are the valid host ids.