Owner manual

85ASUS CX200 Internet Camera
Class Value of
First Octet
Network ID Host ID Number of Hosts
A 1-126 First octet Last three
octets
16,387,064
B 128-191 First two
octets
Last two
octets
64,516
C 192-223 First two
octets
Last octet 254
Any value between 0 and 255 is valid as a host ID octet except for those
values the InterNIC reserves for other purposes.
Value Purpose
0, 255 Subnet masking
127 Loopback testing and interprocess communication on
local devices
224-254 IGMP multicast and other special protocols.
Subnetting and Subnet Masks
Subnetting divides a network address into sub-network addresses to
accommodate more than one physical network on a logical network.
For example:
A Class B company has 100 LANs (Local Area Networks) with 100 to
200 nodes on each LAN. To classify the nodes by its LANs on one
main network, this company segments the network address into 100
sub-network addresses. If the Class B network address is 150.1.x.x, the
address can be segmented further from 150.1.1.x through 150.1.100.x