Planet WRT-414 [91/93] Def_nat

Messages larger than the MTU are divided into smaller packets.

NAT

NAT (Network Address Translation - also known as IP masquerading) enables an organization 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.

(Network) Administrator

The network administrator is the person who manages the LAN within an organization. The

administrator's job includes ensuring network security, keeping software, hardware, and firmware

up-to-date, and keeping track of network activity.

NTP

NTP (Network Time Protocol) is used to synchronize the real-time clock in a computer. Internet primary

and secondary servers synchronize to Coordinated Universal Time (UTC).

Packet

A packet is a portion of data that is transmitted in network communications. Packets are also sometimes

called frames and datagrams. Packets contain not only data, but also the destination IP address.

Ping

Ping (Packet Internet Groper) is a utility used to find out if a particular IP address is present online, and is

usually used by networks for debugging.

Port

Ports are the 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 use ports to connect to the LAN. Ports are

typically numbered.

PPPoE

PPPoE (Point-to-Point Protocol Over Ethernet) is used for running PPP protocol (normally used for

dial-up Internet connections) over an Ethernet.

Preamble

Preamble refers to the length of a CRC (Cyclic Redundancy Check) block that monitors communications

between roaming wireless enabled devices and access points.

Protocol

A protocol is a rule that governs the communication of data.

RIP

RIP (Routing Information Protocol) is a routing protocol that is integrated in the TCP/IP protocol. RIP finds

a route that is based on the smallest number of hops between the source of a packet and its destination.

RTS

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RTS (Request To Send) is a signal sent from the transmitting station to the receiving station requesting

permission to transmit data.