X-Micro Tech. WLAN 11g User Manual

Page 54

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also provides a certain amount of security by acting as a firewall by keeping

ual IP addresses hidden from the WAN.

individ

(Network) Administrator

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

ion. The administrator's job includes ensuring network security, keeping

etwork Time Protocol) is used to synchronize the realtime clock in a computer.

tion of data that is transmitted in network communications. Packets

y used to find out if a particular IP address is

is usually used by networks for debugging.

unications pathways in and out of computers and network devices

s and switches). Most PCs have serial and parallel ports, which are external

.

l

ithin

4.

r

orresponds with. No support is essential

ny of the routers or servers within the network the two PCs are connecting

n the smallest number of hops

organizat

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

NTP

NTP (N

Internet primary and secondary servers synchronize to Coordinated Universal Time

(UTC).

Packet

A packet is a por

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 utilit

present online, and

Port

Ports are the comm

(router

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 protoco

(normally used for dial-up Internet connections) over an Ethernet.

PPTP

Point-to-Point Tunneling Protocol uses TCP to deal data for tunnel maintenance, and

uses PPP for sum up the information carried within the tunnel. The data carried w

the tunnel can be compressed or encrypted. The encryption method used is RSA RC

PPTP can operate when the protocol is supported only on the client and the serve

located on the other end that the client is c

from a

across.

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 o

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