User's Manual

89
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 access points to route IP packets to their destination.
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 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 is comprised of
two parts: 3 bytes of data that corresponds to the Manufacturer ID (unique
for each manufacturer), plus 3 bytes that are often used as the product’s
serial number.
Access point: A access point is an intelligent network device that forwards
packets between different networks based on network layer address
information such as IP addresses.
Subnet Mask: A subnet mask, which may be a part of the TCP/IP information
provided by your ISP, is a set of four numbers (e.g. 255.255.255.0) configured
like an IP address. It is used to create IP address numbers used only within a
particular network (as opposed to valid IP address numbers recognized by the
Internet, which must be assigned by InterNIC).
TCP/IP, UDP: Transmission Control Protocol/Internet Protocol (TCP/IP) and
User Datagram Protocol (UDP). TCP/IP is the standard protocol for data
transmission over the Internet. Both TCP and UDP are transport layer protocol.
TCP performs proper error detection and error recovery, and thus is reliable.
UDP on the other hand is not reliable. They both run on top of the IP (Internet
Protocol), a network layer protocol.