Agilent Technologies Agilent E5810A Uživatelská příručka stáhnout pdf (Strana 153)

153

TCP/IP Network Basics

IP Addressing

This section describes IP addressing for TCP/IP networks, including:

! IP Address Classes

! Subnets and Subnet Masks

! Local and Remote Networks

! IP Address Configuration Methods

IP Address Classes

Each host on a TCP/IP network must have a unique address. This address

is called the

IP address and consists of a network portion and a host portion.

The network portion and host portion of an IP address are determined by the

subnet mask.

Each IP address consists of four decimal numbers separated by periods.

However, TCP/IP uses the 32-bit binary equivalent of the IP address.

For example, the decimal value and binary equivalent of IP address

14.230.26.116 is:

14.230.26.116 = 0000 0110.1110 0110.0001 1010.0111 0100

IP addresses are divided into five classes: Class A, Class B, Class C, Class

D, and Class E. This table summarizes standard Class A, Class B, and

Class C IP addresses. In the table, the

Range is the range of values for the

first 8 bits of the IP address, regardless of class. In the

Binary Equivalent

column, N = a network bit and H = a host bit.

Class Range Network Bits Binary Equivalent

A1 - 127 8 NNNN NNNN.HHHH HHHH.HHHH HHHH.HHHH HHHH

B 128 - 191 16

NNNN NNNN.NNNN NNNN.HHHH HHHH.HHHH HHHH

C 192 - 223 24

NNNN NNNN.NNNN NNNN.NNNN NNNN.HHHH HHHH

1 2 ... 148 149 150 151 152 153 154 155 156 157 158 ... 191 192

Žádné komentáře

Agilent Technologies Agilent E5810A Uživatelská příručka Strana 153