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IPSec
IP Security
(IPSec) is a set of protocols to support the secure exchange of packets at the
IP
layer. It uses shared public keys. There are two encryption modes: Transport and Tunnel.
■
Transport mode
encrypts only the data portion (payload) of each packet, but leaves the
headers untouched.
■
The more secure
Tunnel mode
encrypts both the header and the payload.
ISP
An
Internet Service Provider
(ISP) is a company that provides access to the Internet to
individuals and companies. It may provide related services such as virtual hosting, network
consulting, Web design, etc.
Jitter
Jitter
is the difference between the latency (or delay) in packet transmission from one node
to another across a network. If packets are not transmitted at a consistent rate (including
Latency
),
QoS
for some types of data can be affected. For example, inconsistent
transmission rates can cause distortion in VoIP and streaming media.
QoS
is designed to
reduce jitter along with other factors that can impact network performance.
Latency
Latency
, also known as
delay
, is the amount of time it takes to transmit a
Packet
from sender
to receiver.
Latency can occur when data is transmitted from the access point to a client and vice versa.
It can also occur when data is transmitted from access point to the Internet and vice versa.
Latency is caused by
fixed network
factors such as the time it takes to encode and decode
a packet, and also by
variable network
factors such as a busy or overloaded network.
QoS
features are designed to minimize latency for high priority network traffic.
LAN
A
Local Area Network
(LAN) is a communications network covering a limited area, for
example, the computers in your home that you want to network together or a couple of
floors in a building. A LAN connects multiple computers and other network devices such
as storage and printers.
Ethernet
is the most common technology implementing a LAN.
Wireless Ethernet (
802.11
) is another very popular LAN technology (also see
WLAN
).
LDAP
The
Lightweight Directory Access Protocol
(LDAP) is a protocol for accessing on-line directory
services. It is used to provide an authentication mechanism. It is based on the X.500
standard, but less complex.
Summary of Contents for 7001 Series
Page 1: ...User Guide Gateway 7001 Series Access Point ...
Page 19: ...14 www gateway com ...
Page 30: ...25 www gateway com Type the user name and password and click OK ...
Page 39: ...34 www gateway com Setting configuration policy for new access points ...
Page 59: ...54 www gateway com ...
Page 71: ...66 www gateway com ...
Page 175: ...170 www gateway com ...
Page 176: ...Chapter 9 171 Troubleshooting and Getting Help Known problems Technical support ...
Page 179: ...174 www gateway com ...
Page 180: ...Appendix A 175 Glossary ...
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Page 202: ...Appendix B 197 Specifications ...
Page 206: ...Appendix C 201 Safety Regulatory and Legal Information ...
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