Key Terms

Windows 2008
Network Infrastructure Confiuguration
Lesson 5
Summer 2011
Key Terms
802.1X component that requests
authentication credentials from
802.1X component that verifies the
supplicant’s authentication
Authorization Server
Routing table entry that indicates the
route that will be used if no other
defined routes match a particular
Default Route
Dial-Up Networking (DUN)
Creates a physical connection to a
remote network by using a dial-up
device such, as a POTS modem or a
demand-dial ISDN modem.
Routes to destination networks for
which the router in question is
directly attached.
Directly Attached Network Routes
802.1X packet sent from a
supplicant to an authenticator,
instructing the supplicant to place
the port back in an unauthenticated
Data at Layer 2 of the OSI model
(the Data Link Layer) is organized
into frames for processing by higher
levels of the OSI model.
Routing table entry that defines a
route to a particular destination host
rather than a destination network.
Host Routes
Network device that operates at the
Physical Layer (Layer 1) of the OSI
Please refer to “router”
Layer 3 device
Reserved IP address
( used as the
broadcast address for all networks
and routers.
Limited broadcast address
Reserved IP address
( used for
troubleshooting and testing.
Loopback address
Column in a routing table that
indicates the cost of using one route
instead of another.
Metric (route)
Standard for allowing or disallowing
network access based on
administrator-specified criteria.
Network access control
NPS - Windows Server 2008
implementation of RADIUS.
Network Policy Server
(OSPF) Routing protocol in
which individual routers maintain
a database of all reachable
networks that it is aware of and
share this database with
neighboring routers.
Open Shortest Path First
Data at Layer 3 of the OSI model
(the Network Layer) is organized
into packets for transmission to
local or remote networks.
Layer 1 of the OSI model, where
bits of data interface with the
physical network media.
Physical Layer
Routes to destination networks that
the router in question is not directly
attached to.
Remote network routes
Layer 3 network device that
transmits data between local and
remote networks.
Used in lieu of static routes in
more complex network
environments to simplify the
administration of network routing.
Routing protocols
Callback option that allows the user
to specify the callback number at the
time the connection is made.
Set by Caller
Router running on a computer
running an operating system, such as
Windows Server 2008, that can also
be used for other functions.
Software based router
(MPPE 128-bit) 128-bit
encryption used for VPN
Strongest Encryption
802.1X device that is seeking
access to the network, such as a
laptop attempting to access a
wireless access point.
Layer 2 network device that
examines the source and destination
MAC address of the network data to
determine where the data should be
(VPN) Creates a secured
logical connection to a remote
network over a non-secure
network, such as the Internet.
Virtual Private Network