Download Network Policy and Access Services in Windows Server 2008

MCTS Guide to Microsoft Windows
Server 2008 Network Infrastructure
Configuration
Chapter 9
Network Policy and Access
Services in Windows Server 2008
Objectives
• Configure routing in Windows Server 2008
• Configure Routing and Remote Access Services in
Windows Server 2008
• Describe Network Policy Server
• Discuss wireless networking with Windows Server
2008
MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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Configuring Routing in Windows
Server 2008
• Routing and Remote Access Services (RRAS)
– Role service used to configure and manage network
routing in Windows Server 2008
– Recommended for use in small networks that require
simple routing directions
– Not recommended for large and complex
environments
MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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Configuring Routing in Windows
Server 2008 (continued)
• Activity 9-1: Installing a Windows Server 2008
Member Server
• Time Required: 75 minutes
• Objective: Install a Windows Server 2008 member
server
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Network Infrastructure Configuration
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Configuring RRAS as a Router
• Routers
– Responsible for forwarding packets between
subnets, or networks with differing IP addressing
schemes
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Network Infrastructure Configuration
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MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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Configuring RRAS as a Router
(continued)
• Activity 9-2: Installing RRAS on MSN-SRV-0XX
and MSN-SRV-1XX
• Time Required: 15 minutes
• Objective: Install RRAS
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Network Infrastructure Configuration
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Working with Routing Tables
• Routing tables are composed of routes
• Routes
– Direct data traffic to its destination based on the
information it contains
• Routing tables
– Can be managed in the RRAS console or from the
command line using the route command
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Network Infrastructure Configuration
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Working with Routing Tables
(continued)
• Activity 9-3: Viewing the Routing Table in RRAS
• Time Required: 5 minutes
• Objective: View the routing table in RRAS
MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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Configuring Routes
• Static routing is limited for the following reasons
– Requires manual creation and management
– Should not be used on networks with more than 10
subnets
– All affected routers require reconfiguration if the
network changes
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Network Infrastructure Configuration
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Configuring Routes (continued)
• Activity 9-4: Creating a Static Route
• Time Required: 15 minutes
• Objective: Create a static route from the command
line
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Network Infrastructure Configuration
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Configuring Routes (continued)
• Dynamic protocols
– Route traffic based on information they discover
about remote networks from other routers
• Routing Information Protocol version 2 (RIPv2)
– Uses partner routers, or RIP neighbors, in
determining the dynamic routes it can use for
forwarding packets of data
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Network Infrastructure Configuration
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Configuring a DHCP Relay Agent
• DHCP relay agent
– Manages the communication between a network’s
DHCP server and clients on subnets without a
DHCP server
• With RRAS
– Network adapters are added and configured to listen
for DHCP broadcast messages
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Network Infrastructure Configuration
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Configuring a DHCP Relay Agent
(continued)
• Activity 9-5: Configuring MSN-SRV-0XX as a
DHCP Relay Agent
• Time Required: 15 minutes
• Objective: Install a DHCP relay agent
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Network Infrastructure Configuration
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Configuring Dial-on-Demand Routing
• Demand-dial routing
– Allows a server to initiate a connection only when it
receives data traffic bound for a remote network
– Can use dial-up networks instead of more expensive
leased lines
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Network Infrastructure Configuration
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Configuring Remote Access Services
in Windows Server 2008
• Dial-up networking
– Connects remote users to their networks using a
standard phone line
• Virtual Private Networks
– Allow client connections to your network from remote
locations
– Works by creating a secure tunnel for transmitting
data packets between two points
– VPN tunneling protocols: Point-to-Point Tunneling
Protocol, Layer 2 Tunneling Protocol, Secure Socket
Tunneling Protocol
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Network Infrastructure Configuration
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MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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Configuring Remote Access Services
in Windows Server 2008 (continued)
• Activity 9-6: Installing Remote Access Support for
VPNs in RRAS
• Time Required: 15 minutes
• Objective: Install Remote Access Support with VPN
in RRAS
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Network Infrastructure Configuration
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MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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Configuring Remote Access Services
in Windows Server 2008 (continued)
• Activity 9-7: Configuring VPN Ports
• Time Required: 15 minutes
• Objective: Configure VPN ports
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Network Infrastructure Configuration
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Network Address Translation
• Allows you to shield internal IP address ranges
from public networks by allowing internal clients to
access the Internet through a shared IP address
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Network Infrastructure Configuration
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MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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Introduction to Network Policy Server
• Network Policy Server (NPS)
– Role service that provides a framework for creating
and enforcing network access policies for client
health
– Can be used to perform:
• Configure a RADIUS server
• Configure a RADIUS proxy
• Configure and implement Network Access Protection
(NAP)
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Network Infrastructure Configuration
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Windows Server 2008 Editions and the
NPS Console
• NPS Console
– Central utility for managing
•
•
•
•
RADIUS clients and remote RADIUS servers
Network health and access policies
NAP settings for NAP scenarios
Logging settings
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Network Infrastructure Configuration
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Windows Server 2008 Editions and the
NPS Console (continued)
• Activity 9-8: Installing NPS
• Time Required: 15 minutes
• Objective: Install the NPS role service
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Network Infrastructure Configuration
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Windows Server 2008 Editions and the
NPS Console (continued)
• Activity 9-9: Creating a Network Access Policy for
VPN Connections
• Time Required: 15 minutes
• Objective: Create a network access policy
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Network Infrastructure Configuration
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Introduction to RADIUS
• RADIUS
– Industry-standard protocol that provides centralized
authentication, authorization, and accounting for
network access devices
• Components of RADIUS
–
–
–
–
–
RADIUS clients
Network access servers
RADIUS proxy
RADIUS server
User account database
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Network Infrastructure Configuration
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MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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RADIUS Server
• Used on networks to perform authentication,
authorization, and accounting for RADIUS clients
• RADIUS client
– Can be an NPS, which replaces the IAS from
previous versions of Windows Server
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Network Infrastructure Configuration
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RADIUS Server (continued)
• RADIUS
– Standardized network protocol that centralizes the
following process for user connections
• Authentication
• Authorization
• Accounting
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Network Infrastructure Configuration
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RADIUS Proxy
• NPS
– Can be configured as a RADIUS proxy
• RADIUS proxies
– Route RADIUS messages between RADIUS clients
and RADIUS servers
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Network Infrastructure Configuration
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NAP
• Network Access Protection (NAP)
– Provides a tool for you to block external and internal
network threats
– Can be broken into three parts
• Health policy validation
• Health policy compliance
• Limited access
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Network Infrastructure Configuration
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Authentication Protocol
• Supported authentication protocols in Windows
Server 2008
– Extensible Authentication Protocol–Transport Layer
Security (EAP-TLS)
– Protected Extensible Authentication Protocol–
Transport Layer Security PEAP-TLS
– Protected PEAP–Microsoft Challenge Handshake
Authentication Protocol version 2 (PEAPMSCHAPv2)
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Network Infrastructure Configuration
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Wireless Access Configuration in
Windows Server 2008
• 802.1x standard
– Developed by the Institute of Electrical and
Electronics Engineers (IEEE)
• On 802.1x networks
– Network access control provides an authentication
mechanism to allow or deny network access based
on port connection
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Network Infrastructure Configuration
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Wireless Access Configuration in
Windows Server 2008 (continued)
• Categories of EAP implementations
– EAP over local area network (LAN)
– EAP over wireless
• 802.1x uses a three-component model for
authenticating access to networks
– Supplicant
– Authenticator
– Authentication server
MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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MCTS Guide to Microsoft Windows Server 2008
Network Infrastructure Configuration
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Summary
• RRAS
– Role service used to configure and manage network
routing in Windows Server 2008
• Routers
– Responsible for forwarding packets between
subnets, or networks with differing IP addressing
schemes
• To process traffic
– Router uses routing tables to determine where to
send traffic
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Network Infrastructure Configuration
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Summary (continued)
• Routers
– Use dynamic routing protocols and preconfigured
static routes to deliver packets using the best route
possible between two subnets
• Most modern networks
– Support the passing of DHCP broadcast messages
between subnets without a DHCP server to subnets
that contain a DHCP server
• Demand-dial routing
– Allows a server to initiate a connection only when it
receives data traffic bound for a remote network
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Network Infrastructure Configuration
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Summary (continued)
• VPNs
– Provide secure network access for remote clients
over the Internet through the use of tunneling
protocols
• NAT
– Allows you to shield internal IP address ranges from
public networks
• NAP
– Provides a framework for you to block external and
internal network threats
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Network Infrastructure Configuration
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