Filter
Top Products
43
Glossary
Glossary
MTU
MTU (Maximum Transmission/Transfer Unit) is the largest packet size that can
be sent over a network. Messages larger than the MTU are divided into smaller
packets.
NAT
NAT (Network Address Translation — also known as IP masquerading) enables
a LAN to present itself to the Internet with one address. NAT converts the
address of each LAN node into one IP address for the Internet (and vice versa).
NAT also provides a certain amount of security by acting as a firewall by keeping
individual IP addresses hidden from the WAN.
Ping
Ping (Packet Internet Groper) is a utility used to find out if a particular IP address
is presently online.
Port
Ports are the physical and/or logical communications pathways in and out of
computers and network devices (routers and switches). Most PCs have serial
and parallel ports, which are external sockets for connecting devices such as
printers, modems, and mice. All network adapters also use ports to connect
to the LAN. Finally, applications that communicate over the Internet also have
ports; these are the endpoints of the application and are given a specific port
number.
PPPoE
PPPoE (Point-to-Point Protocol Over Ethernet) is a protocol used to communicate
between two computers using a serial interface, such as dialup Internet
connections, over an Ethernet link.
Protocol
A protocol is a rule that governs the communication of data.
Server
Servers are typically powerful and fast computers that store programs and data.
The programs and data are shared by client computers (workstations) on the
network.
Subnet Mask
Subnet Masks (subnetwork masks) are used by IP protocol to direct messages
into a specified network segment (i.e., subnet). A subnet mask is stored in the
client machine, server or router and is compared with an incoming IP address to
determine whether to accept or reject the packet.