Ip addresses, Components of the ip address, Network portion – Lantronix XPort User Manual
Page 63: Ip addresses 9-1, Components of the ip address -1, Network portion -1, Thods, see 9, If y
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Each TCP/IP node on a network host has a unique IP address. This address
provides the information needed to forward packets on the local network and
across multiple networks if necessary.
IP addresses are specified as x.x.x.x, where each x is a number from 1 to 254;
for example, 192.0.1.99. The unit must be assigned a unique IP address to use
TCP/IP network functionality.
This chapter includes the following topics:
Topic
Page
Components of the IP Address
9-1
Network Address
9-2
Broadcast Address
9-2
IP Subnet Mask
9-2
Private IP Networks and the Internet
9-3
Network RFCs
9-3
Alternative Ways to Assign an IP Address
9-4
Components of the IP Address
Network Portion
The network portion of the IP address is determined by the network type: Class
A, B, or C.
Table 9-1. .Network Portion of IP Address
Network Class
Network Portion of Address
Class A
First byte (2nd, 3rd, and 4th bytes are the host)
Class B
First 2 bytes (3rd and 4th bytes are the host)
Class C
First 3 bytes (4th byte is the host)
In most network examples, the host portion of the address is set to zero.
Table 9-4. Available IP Addresses
Class Address Range
Comments
A 1.0.0.1
to
126.255.255.254
126 networks of 16,777,214 hosts
B 128.1.0.1
to
191.254.255.254
16,328 networks of 65,534 hosts
C
192 0 1 1 to
2,097,150 networks of 254 hosts
XPort™ User Guide
9-1