
72
C-Class Networks Features of
Addresses
IP address: The three-digit number in room "X4" is for the Host ID. The number range is from 0 to 255.
Among the numbers, 0 is used for Network ID, 1 is used for Router IP (gateway address)and 255 is
used for a broadcast address. The numbers from 2 to 244 are IP addresses that can be assigned to a
Pro Series Network Camera, PC, etc.
Network ID: Identifies a network. Generally the first number assigned is Network ID.
Gateway address: The IP address of the router for connecting the Internet and a local network.
Broadcast address: The IP address for broadcasting. All devices connected on a local network have
the same broadcast address.
Subnet mask: Divides a local network into two remote networks and shows the IP quantity in a certain
network. The number used as a subnet mask is limited: 0, 4, 8, 16, 32, 64, 128.
Network Configuration
1.
To use as one network
Network ID: xxx.xxx.xxx.0
Gateway Address: xxx.xxx.xxx.1
Subnet Mask: 255.255.255.0
Broadcast Address: xxx.xxx.xxx.255
IP addresses: xxx.xxx.xxx.2 - xxx.xxx.xxx.254
2.
To use as two sub-networks (1/2 + 1/2)
Sub-Network ID: xxx.xxx.xxx.0
Gateway Address: xxx.xxx.xxx.1
Subnet Mask: 255.255.255.128
Broadcast Address: xxx.xxx.xxx.127
IP addresses: xxx.xxx.xxx.2 - xxx.xxx.xxx.126
Sub-Network ID: xxx.xxx.xxx.128
Gateway Address: xxx.xxx.xxx.129
Subnet Mask: 255.255.255.128
Broadcast Address: xxx.xxx.xxx.255
IP addresses: xxx.xxx.xxx.130 -xxx.xxx.xxx.254
3.
To use as three sub-networks (1/4 + 1/4 + 1/2)
Sub-Network ID: xxx.xxx.xxx.0
Gateway Address: xxx.xxx.xxx.1
Subnet Mask: 255.255.255.192
Broadcast Address: xxx.xxx.xxx.63
IP addresses: xxx.xxx.xxx.2 - xxx.xxx.xxx.62
Sub-Network ID: xxx.xxx.xxx.64
Gateway Address: xxx.xxx.xxx.65
Subnet Mask: 255.255.255.192
Broadcast Address: xxx.xxx.xxx.127
IP addresses: xxx.xxx.xxx.66 - xxx.xxx.xxx.126
Sub-Network ID: xxx.xxx.xxx.128