HP Deskjet 6840 Color Inkjet Printer User Manual

Page 44

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Broadcast packet: A packet sent from one device on a network to all devices on the

network.
c
Channel: One of several pre-set frequencies at which 802.11b-enabled devices

communicate in order to reduce interference. The number of channels available

varies by country/region.

d
DHCP (Dynamic Host Configuration Protocol): A protocol used to automatically

assign an IP address to each device on a network.
e
EAP: Extensible Authentication Protocol (EAP) is a general protocol for

authentication that also supports multiple authentication methods, such as token

cards, one-time passwords, certificates, and public key authentication.

WPA

uses

EAP.
Encryption: A network security that encodes the data sent across a wireless network

making the data unintelligible to eavesdroppers. The printer supports

WEP

,

TKIP

,

and

AES

.

Encryption keys: A sequence of characters or digits that a wireless device uses to

encode data. Encryption keys can be static (as they are in

WEP

) or dynamic (as

they are in

WPA

).

Ethernet: A popular form of wired computer networking for Local Area Networks.
Ethernet cable: There are two types of Ethernet cables. A straight-through cable is

the most common and is used to connect devices on a network to a hub or router.

A crossover cable is used to connect two devices that have Ethernet ports but that

are not hubs or routers. Use a CAT-5 cable with an RJ-45 plug to connect the printer

to an Ethernet network.
f
Firewall: A combination of hardware and software tools that protects a network from

unwanted entry.
g
Gateway: A dedicated device (router or computer) that connects two different

networks. For example, a computer on an Ethernet network may act as a gateway

between the network and the Internet.
h
Host name: The name by which the printer identifies itself on the network. The

printer's host name appears on the HP Report page. Use the host name to open

the printer's embedded Web server (EWS).

HP Deskjet 6800 series printer User's Guide

44

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