There are4 octets in an IP address as shown below:
Octet1.Octet2.Octet3.Octet4
Every IP class has different allocation of network and host ID.
For class A, the network and host IDs' allocation is as follows:
Network.Host.Host.Host
For class B, the network and host IDs' allocation is as follows:
Network.Network.Host.Host
For class C, the network and host IDs' allocation is as follows:
Network.Network.Network.Host
You may go to the following link get more info on IP address classes and their IDs:
www.iphow.x10hosting.com
Assuming we are talking IPv4, the split between network and host is determined by the subnet mask. In binary, where there is a "1" it is network, where there is a "0" it is host. A+ pg. 870: A: 1st octect: Network; 2nd,3rd,and 4th: Host B: 1st and 2nd octects: Network; 3rd and 4th octets:Host C: 1st,2nd,3rd octects:Network; 4th octect: Host
The first octet determines what class of network you are located on. From that, you can determine how many of the octets represent the network address, and which part represents the client or host portion. IP addresses in version 4 (iPv4) are divided into two segments: the network id and the host id. Knowing the range of network class addresses will help: Class A is 0 - 126 and uses only the first octet for the network portion Class B is 128 - 191 and uses the first two octets for the network id Class C is 192 - 223 and uses the first three octets for the network id An example would be: 192.168.1.5 is a class C address, so we use the first three octets for the network id. This gives a network id of 192.168.1.0 and a host id of 5 in that network.
A classful class B network has a network range of 128 - 191. For host addresses, anything that is legal for an IP address in the last 2 octets would be a valid host address for a class B with no subnets.
There are 4 octets in an IP address as shown below:Octet1.Octet2.Octet3.Octet4 Every IP class has different allocation of network and host ID.For class A, the network and host IDs' allocation is as follows:Network.Host.Host.HostFor class B, the network and host IDs' allocation is as follows:Network.Network.Host.HostFor class C, the network and host IDs' allocation is as follows:Network.Network.Network.HostYou may go to the following link get more info on IP address classes and their IDs:www.iphow.co.cc
The last 3 octets represent the host portion in a class A address.
A class B address range is all the addresses that start with binary 10, or decimal 128-192. As originally defined, the first two bytes (octets) indicate the network; the last two bytes are reserved for the host. That is, a class B network has about 65,000 available addresses.
This address is for a class B network (128 - 191)
An identifier for a host. A host ID uniquely identifies a host within an address family on a network but does not identify the network. A host ID is not necessarily sufficient to establish communications with a host. foe example:- In a class C IP address say, 192.52.56.8 the first 3 octets denote the net ID while the last octet shows the host ID.
The four octets make up a complete address. The first part refers to a network, the remainder an individual computer in a host; however, the exact size of this "first part" may vary.
The IP address 150.0.0.0 is part of the Class B range of IP addresses, which spans from 128.0.0.0 to 191.255.255.255. In this specific address, the first two octets (150.0) indicate the network portion, while the last two octets (0.0) represent the host portion. This means that it can accommodate a large number of hosts within the 150.0.0.0 network.
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Since a subnet mask is used to separate the network id from the host id, any 1 bits indicate the network portion and the 0 bits indicate host portion. As an example, in the subnet mask: 255.255.0.0 This indicates the first two octets are used for the network, and the last two octets (ipV4) are used for host portion of an address.