Comtech EF Data Vipersat CDM-570 Uživatelská příručka stáhnout pdf (Strana 106)

IP Addressing

A-8 Vipersat CDM-570/570L User Guide

Class E

• 240.0.0.0 to 255.255.255.255

• Reserved for experimental use and limited broadcast

Private Network IP Addresses

RFC 1918 defines blocks of addresses for use on private networks:

• 10.0.0.0 – 10.255.255.255

• 172.16.0.0 – 172.31.255.255

• 192.168.0.0 – 192.168.255.255

Network Address Translation (NAT)

Private networks can only connect to the public Internet by using a Network

Address Translation (NAT) device (a router, for example) or a proxy server

which has been assigned a public IP address. These network devices use a

public IP address to request information from the Internet on behalf of the

private IP addressed devices on the associated private network.

Figure A-5

NAT Router Example

This use of private addresses helps to conserve public IP addresses.

Subnets

Subnets can be defined as the further segmentation of the InterNIC assigned

Network ID IP address. The amount and type of subnetting performed by the

organization is determined by the network layout.

Ethernet

Host 1

Host 2

NAT Router

Internet

192.168.0.2

192.168.0.3

192.168.0.1 Public IP

1 2 ... 101 102 103 104 105 106 107 108 109 110 111 ... 161 162

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Comtech EF Data Vipersat CDM-570 Uživatelská příručka Strana 106