User`s guide

WebEye E10/E104WebEye E10/E104 User’s Guide
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3. C class Network
1) Features of Addresses
IP address: The three digit number in room ‘X4’ is for the Host ID. The numbers range 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 Broadcast address. The numbers from 2 to 244 are IP addresses that can be assigned
to WebEye, i-Rec Cam104, 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. Remote
users can access local network over Internet through the gateway (router). Generally the second
number is assigned as Gateway address.
Broadcast address: Broadcasts to all devices that are connected on local network. Broadcast
address is a destination 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 numbers that can be used as subnet mask are 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