WHAT IS IP ADDRESS(ipv4)
what is ip address - IP ADDRESS is a 32-bit unique logical address used to identify the computer over the network.It is divided into four octet and each octet separated by dot (.) .each octet consist of 8-bit. It is represented in decimal number.
the maximum value of ip address in any block is 255.It has two field network and host. upto the network field of an IP ADDRESS,the subnet mask bit is always set to be on (1) and in the host field the subnet mask bit is always set to be off (0).
It has five class. class A,B,C,D,E. class A,B and C are used for general purpose. class D is used for multicastcast and class Eis used for R&D(research and development) purposes.
IP ADDRESS CLASS
CLASS ADRRESS RANGE DEFUALT SUBNET MASK
class A 1.0.0.1 to 126.255.255.255 255.0.0.0
class B 128.0.0.1 to 191.255.255.255 255.255.0.0
class C 192.0.0.1 to 123.255.255.255 255.255.255.0
class D 224.0.0.1 to 239.255.255.255 reserved for multicast
class E 240.0.0.1 to 255.255.255.255 reserved for R&D
note: 127.0.0.0 is a loopback address(for self test)
PRIVET IP ADDRESS
Within the address space, certain networks are reserved for private networks. Packets from these networks are not routed across the public internet. This provides a way for private networks to use internal IP addresses without interfering with other networks.
privet ip address are
class A 10.0.0.1 to 10.255.255.255
class B 172.16.0.0 to 172.16.255.255
also see this
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