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IP App. Functions
IP Address Selection
Class
No. of available addresses
Subnet Mask
Private IP
Class A
16,777,216
255.0.0.0
10.0.0.0 ~ 10.255.255.255
Class B
1,048,576
255.255.0.0
172.16.0.0 ~ 172.32.255.255
Class C
65,536
255.255.255.0
192.168.0.0 ~ 192.168.255.255
Class D
Not available. Normally for multitasking.
Class E
Not available. Normally for testing.
Class A: 1.0.0.1 ~ 127.255.255.254
Class B: 128.0.0.1 ~ 191.255.255.254
Class C: 192.0.0.1 ~ 223.255.255.254
Class D: 224.0.0.0 ~ 239.255.255.255
Class E: 240.0.0.0 ~ 254.255.255.254
The range of the numbers available for IP address is from 0 to 255. All IP address classes can be identified
with the bit of the first number. With other classes, it cannot communicate with each other.
Private IP address in the above table is available for communication on the same network, but cannot pass
through the router. It is used for LAN only.
IP address classes shall match each other.
Specific IP addresses such as Class D/E are not available for use. These IP addresses are normally used for
specific purposes such as multicasting or broadcasting. If you use this kind of IP addresses in general, it may
cause some problem in network.
Link-local Address
All devices supporting zero-configuration have one or more link-local addresses.
The range of the link-local address is from 169.254.0.0 to 169.254.255.254
All network cameras supporting zero-configuration can be discovered and connected with this test
monitor, but their regular private IPs (e.g. 192.168.x.x) take precedence.
Network specifications depend on each camera manufacturer. Class C is used in common and for large/
medium-sized network, Class B is generally used.
If you connect an IP camera with an IP address except for private IP addresses, it may be disclosed on the
Internet and be in danger of being hacked.
