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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.
ISP Gateway Address:
(see ISP listed below for explanations). The ISP
Gateway Address is an IP address for the Internet router located at the ISP's
office.
ISP:
Internet Service Provider. An ISP is a business that provides connectivity
to the Internet for individuals and other businesses or organizations.
LAN:
Local Area Network. A LAN is a group of computers and devices
connected together in a relatively small area (such as a house or an office).
Your home network is considered as a LAN.
MAC Address:
MAC stands for Media Access Control. A MAC address is the
hardware address of a device connected to a network. The MAC address is a
unique identifier for a device with an Ethernet interface. It comprises two parts:
3 bytes of data that corresponds to the Manufacturer ID (which is unique for
each manufacturer), plus 3 bytes that are often used as the product’s serial
number.
NAT:
Network Address Translation. This process allows all of the computers
on your home network to use one IP address. Using the broadband router’s
NAT capability, you can access the Internet from any computer on your home
network without having to purchase more IP addresses from your ISP.
Port:
Network Clients (LAN PC) uses port numbers to identify one network
application/protocol from another. Below is a list of common applications and
protocol/port numbers:
Application Protocol
Port
Number
Telnet TCP 23
