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Network Video Server User’s Guide
56
C Class Network
1. Features of Addresses
IP address: The three-digit number in room ‘X4’ is for the Host ID. The number ranges from 0 to
255. Among the numbers, 0 is used for Network ID, 1 is used for Router IP (Gateway address)
and 255 are used for Broadcast address. The numbers from 2 to 244 are IP addresses that can be
assigned to NETWORK VIDEO SERVER, 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 Internet and local network.
Broadcast address: The IP address for broadcasting. All devices connected on local network
have the same Broadcast address.
Subnet Mask: Divides a local network into two remote networks. Subnet mask shows the IP
quantity in a certain network. The number that can be used as subnet mask is
limited (0, 4, 8, 16, 32, 64, 128)
2. 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)