DG-BR5411QAC User Manual
95
Idle Timeout:
Idle Timeout is designed so that after there is no traffic on the Internet for a
pre-configured amount of time, the connection will automatically get disconnected.
IP Address and Network (Subnet) Mask:
IP stands for Internet Protocol. An IP address consists of a series of four numbers
separated by periods, which identifies a single, unique Internet computer host in an IP
network. Example: 192.168.2.1. It consists of 2 portions: the IP network address, and
the host identifier. The IP address is a 32-bit binary pattern, which can be represented
as four cascaded decimal numbers separated by “.”: X.X.X.X, where each “X” can be
anything from 000 to 255.
A network mask is also a 32-bit binary pattern, and consists of consecutive
leading 1’s followed by consecutive trailing 0’s, such
11111111.11111111.11111111.00000000. Therefore sometimes a network mask can
also be described simply as “x” number of leading 1’s. When both are represented
side by side in their binary forms, all bits in the IP address that correspond to 1’s in the
network mask become part of the IP network address, and the remaining bits
correspond to the host ID.
For example, if the IP address for a device is, in its binary form,
11011001.10110000.10010000.00000111, and if its network mask is,
11111111.11111111.11110000.00000000 It means the device’s network address is
11011001.10110000.10010000.00000000, and its host ID is,
00000000.00000000.00000000.00000111. This is a convenient and efficient method
for routers to route IP packets to their destination.
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