Optiva VTDVR5100 Tytanium DVR series, Installation & User Manual

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VTDVR5100 Digital Video Recorder
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1#2.3 Network Class
1) Address feature
IP address : 3 numbers in X4 indicates Host ID that is addressed from 0 to 255. But, generally, 0 & 255
is used to network ID & Broadcast address, but 1 to 244 IP address used in practical.
Network ID: As Local network ID, the address indicates network identity in Internet. Generally, it
addresses most superior number in local network.
Gateway address: It is IP address for Router connecting internet and local network, and the path of
connecting local network that is ID assigned ID and internet. Generally, next number of local network ID
is addressed.
Broadcast address: It is for the broadcasting of all devices connected to local network and is the address
of last destination. This address is produced by calculation and all devices connected to network have
same Broadcast address.
Subnet Mask address: It is the address to make differential network(Remote network) by dividing local
network smaller and indicates the size of one network(number of IP included). Number of Subnet Mask
address has been fixed (0, 4, 8, 16, 32, 64, 128, 192).
2) Network Structure
(1) When structure 1 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) When structure 2 networks in same size (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