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IP Address

An Internet protocol address is a 32 bit number that identifies each sender or receiver of information that is sent in packets across the Internet.

When you request a HTML page send emails the Internet protocol part of TCP/IP includes your address in the message and sends it to the IP address that is obtained by looking up the domain name in the URL you requested or email address your sending to.

An IP Address has two parts:-

1/ The identifier of a particular network on the Internet.

2/ An identifier of the particular device within that network (e.g. server or workstation).

On the Internet itself that is, between the routers that move packets from one point to another along the route - only the network part of the address is looked at.
The Network Part of The IP Address

The Internet is really the interconnection of many individual networks, so the IP is basically the set of rules for one network communicating with any other.

Each network must know its own address on the Internet and those of any other network with which it communicates. To be part of the Internet, a company needs an Internet network number, which it can request from the Network Information Centre (NIC). This unique network number is included in any packet sent out of the network on to the Internet.
The Load or Host Part of the IP Address

In addition to the network address or number, information is needed about which specific machine or host is sending or receiving a message. The IP address needs both the unique network number and a host number (local machine address). The local or machine address is unique within the network.
Internet Address

This is an address that looks like 128.6.4.194 it is actually a 32 bit number. However it is usually written as 4 decimal numbers, each represents 8 bits of the address e.g. 128.6 is the network number assigned by NIC to Rutgers University. Rutgers uses the next octet to indicate which of the campus Ethernets is involved 128.6.4 happens to be the Ethernet used by the computer science dept. The last octet allows up to 254 systems on each Ethernet.
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	IP Address

	An Internet protocol address is a 32 bit number that identifies each sender or receiver of information that is sent in packets across the Internet. When you request a HTML page send emails the Internet protocol part of TCP/IP includes your address in the message and sends it to the IP address that is obtained by looking up the domain name in the URL you requested or email address your sending to. An IP Address has two parts:- 1/ The identifier of a particular network on the Internet. 2/ An identifier of the particular device within that network (e.g. server or workstation). On the Internet itself that is, between the routers that move packets from one point to another along the route - only the network part of the address is looked at. The Network Part of The IP Address The Internet is really the interconnection of many individual networks, so the IP is basically the set of rules for one network communicating with any other. Each network must know its own address on the Internet and those of any other network with which it communicates. To be part of the Internet, a company needs an Internet network number, which it can request from the Network Information Centre (NIC). This unique network number is included in any packet sent out of the network on to the Internet. The Load or Host Part of the IP Address In addition to the network address or number, information is needed about which specific machine or host is sending or receiving a message. The IP address needs both the unique network number and a host number (local machine address). The local or machine address is unique within the network. Internet Address This is an address that looks like 128.6.4.194 it is actually a 32 bit number. However it is usually written as 4 decimal numbers, each represents 8 bits of the address e.g. 128.6 is the network number assigned by NIC to Rutgers University. Rutgers uses the next octet to indicate which of the campus Ethernets is involved 128.6.4 happens to be the Ethernet used by the computer science dept. The last octet allows up to 254 systems on each Ethernet. Top of page