Alcatel OmniAccess Wireless System 2.1 Product Manual page 250

IPSec Passthrough
Alcatel OmniAccess Operating System Security feature that allows IPSec-equipped clients to communi-
cate directly with other IPSec equipment.
IPX-SPX
IPX, short for Internetwork Packet Exchange, a networking protocol used by the Novell NetWare
operating systems. Like UDP/IP, IPX is a datagram protocol used for connectionless communications.
Higher-level protocols, such as SPX and NCP, are used for additional error recovery services.
Sequenced Packet Exchange, SPX, a transport layer protocol (layer 4 of the OSI Model) used in Novell
Netware networks. The SPX layer sits on top of the IPX layer (layer 3) and provides connection-oriented
services between two nodes on the network. SPX is used primarily by client/server applications.
Whereas the IPX protocol is similar to IP, SPX is similar to TCP. Together, therefore, IPX-SPX provides
connection services similar to TCP/IP.
ISA
A type of internal computer bus that allows the addition of card-based components like modems and
network adapters. ISA has been replaced by PCI and is not very common anymore.
ISDN
A type of broadband Internet connection that provides digital service from the customer's premises to
the dial-up telephone network. ISDN uses standard POTS copper wiring to deliver voice, data or video.
ISO Network Model
A network model developed by the International Standards Organization (ISO) that consists of seven
different levels, or layers. By standardizing these layers, and the interfaces in between, different
portions of a given protocol can be modified or changed as technologies advance or systems require-
ments are altered. The seven layers are:
•
Application, Layer 7
•
Presentation, Layer 6
•
Session, Layer 5
•
Transport, Layer 4
•
Network, Layer 3
•
Data Link, Layer 2
•
Physical, Layer 1
The IEEE 802.11 Standard encompasses the physical layer (PHY) and the lower portion of the data link
layer. The lower portion of the data link layer is often referred to as the Medium Access Controller
(MAC) sublayer.
ISS
A special software application that allows all PCs on a network access to the Internet simultaneously
through a single connection and Internet Service Provider (ISP) account.
Key Management
Ensuring that encryption keys are current and synchronized between clients and Access Points. Key
management can be performed manually or automatically using 802.1X.
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Glossary