1. Module 4: Configuring Network Connectivity
Course 6292A
Module Overview
Module 4: Configuring Network Connectivity
Configuring IPv4 Network Connectivity
Configuring IPv6 Network Connectivity
Implementing Automatic IP Address Allocation
Overview of Name Resolution
Troubleshooting Network Issues
This module’s key message is to provide an understanding of both IPv4 and IPv6. This will help students configure and troubleshoot the Windows 7 networking features.
After completing this module, you will be able to:
Configure IPv4 network connectivity.
Configure IPv6 network connectivity.
Implement automatic IP address allocation.
Troubleshoot common network related issues by using the tools available in Windows 7.
The Windows Server® 2008 R2 and Windows® 7 operating systems include networking enhancements that make it easier for users to get connected and stay connected regardless of their location or type of network. These enhancements also enable IT professionals to meet the needs of their business in a secure, reliable, and flexible way.
New networking features include:
DirectAccess, which enables users to access an enterprise network without the extra step of initiating a virtual private network (VPN) connection.
VPN Reconnect, which automatically re-establishes a VPN connection as soon as Internet connectivity is restored, saving users from re-entering their credentials and re-creating the VPN connection.
BranchCache™, which enables updated content from file and Web servers on a wide area network (WAN) to be cached on computers at a local branch office, increasing application response time and reducing WAN traffic.
URL-based Quality of Service (QoS), which enables you to assign a priority level to traffic based on the URL from which the traffic originates.
Mobile broadband device support, which provides a driver-based model for devices that are used to access a mobile broadband network.
Multiple active firewall profiles, which enable the firewall rules most appropriate for each network adapter based on the network to which it is connected.

2. Module 4: Configuring Network Connectivity
An IPv4 address identifies a computer to other computers on a network.
Course 6292A
What Is an IPv4 Address?
Module 4: Configuring Network Connectivity
IP Address
IP Address
IP Address
Subnet 1
IP Address
IP Address
IP Address
Subnet 2
Dotted decimal representation of the address

3. Module 4: Configuring Network Connectivity
This is the host ID in the fourth octet. Note: This host ID is 200 of 254 hosts on this specific subnet.
This is the network ID for this number. This network ID is shared by all the hosts on the same subnet
A subnet mask specifies which part of an IPv4 address is the network ID and which part of the IPv4 address is the host ID.
This is a simple Class C type IPv4 number. There are 3 octets for the network ID and 1 octet for the host ID.
Course 6292A
What Is a Subnet Mask?
Module 4: Configuring Network Connectivity
IP address x w y z
192
168 1
200
Subnet mask x w y z
255
Network ID x w y z
192
168 1

4. What Is a Default Gateway?
A default gateway is a device, usually a router, on a TCP/IP internet that forwards IP packets to other subnets.
Course 6292A
What Is a Default Gateway?
Module 4: Configuring Network Connectivity
Use a default gateway when the internal routing table on the host has no information about the destination subnet.
Router
Default gateway
Subnet 2
Windows 7 clients
Subnet 1
Windows 7 clients

5. What Are Public and Private IPv4 Addresses?
Course 6292A
What Are Public and Private IPv4 Addresses?
Module 4: Configuring Network Connectivity
Private
Non-routable on the Internet
Can be locally assigned by organization
Must be translated to access the Internet
Public
Required by devices and hosts that connect directly to the Internet
Must be unique
Routable on the Internet
Must be assigned by IANA

6. Module 4: Configuring Network Connectivity
Course 6292A
Benefits of Using IPv6
Module 4: Configuring Network Connectivity
Benefits of using IPv6 compared to IPv4
Larger address space ü
More efficient routing
Simpler host configuration
Built-in security
Better prioritized delivery support
Redesigned headers

7. Windows 7 Support for IPv6
Course 6292A
Module 4: Configuring Network Connectivity
Windows 7 Support for IPv6
IPv6 is Enabled by Default
Windows 7 uses IPv6 by default to support security needs and additional features
Windows 7 Dual Stack
Windows 7 facilitates the dual stack to use IPv4 and IPv6 simultaneously
Direct Access requires IPv6
Windows 7 clients can use Direct Access which facilitates client computers connecting to the enterprise domain
IPv6 uses Remote Desktop
IPv6 supports Windows 7 File Sharing Security and Echo System features such as Remote Access and Direct Access

8. What Is the IPv6 Address Space?
Course 6292A
What Is the IPv6 Address Space?
Module 4: Configuring Network Connectivity
The IPv6 address space:
Uses 128 bits as compared to 32-bits that the IPv4 address space uses
Allocates 64-bits for the network ID and 64-bits for the host ID
Uses a prefix to define the network ID
IPv6 uses hexidecimal notation
2001:0DB8:0000:0000:02AA:00FF:FE28:9C5A/64
Shorten
Each digit represents four bits
2001:DB8:0:0:2AA:FF:FE28:9C5A/64
Shorten
Shorten the address by dropping leading zeros and using zero compression
2001:DB8::2AA:FF:FE28:9C5A/64
Continue shortening the address by dropping contiguous groups of zeros
The prefix is a forward slash followed by the number of bits in the network ID

9. Module 4: Configuring Network Connectivity
Course 6292A
IPv6 Address Types
Module 4: Configuring Network Connectivity
IPv6 Address Types
Unicast – use for one-to-one communication between hosts
Multicast – use for one-to-many communication between computers that are defined as using the same multicast address
Anycast – use for locating services or the nearest router
IPv6 Unicast Address Types
Global Unicast – globally routable and reachable on the IPv6 portion of the Internet
Link-Local – use when communicating with neighboring hosts on the same link
Unique Local Unicast – equivalent to IPv4 private address spaces, such as /8, and have the prefix FD00::/8

10. Automatic IPv4 Configuration Process
Course 6292A
Automatic IPv4 Configuration Process
Module 4: Configuring Network Connectivity
IPv4 Client
DHCP Server with IPv4 Scope and IPv4 Site Local Scope
IPv4 Router
IPv4 Static Configuration
Automatic private IP addressing (APIPA):
Is used if a DHCP server cannot be contacted ü
Assigns IP addresses on the /16 network
Cannot be used with:
Active Directory
Internet connectivity
Multiple subnets
DNS or WINS servers

11. Automatic IPv6 Configuration Process
Course 6292A
Automatic IPv6 Configuration Process
Module 4: Configuring Network Connectivity
Static Configuration
IPv6 Client
Automatic IPv6 Configuration Process
DHCP V6 Server – assigns Automatic IPv6 Configuration information to the client.
IP V6 Clients – uses DHCP assigned IP Configuration to access network resources
IP V6 Static Client – does not get automatic configuration from the DHCPv6 Server
DHCP v6 Server with IPv6 Scope and IPv6 Site Local Scope
IP V6 Router – provides a Gateway to the internet or another Subnet.
IPv6 Client
IPv6 Router

12. Troubleshooting Client-Side DHCP Issues
Course 6292A
Troubleshooting Client-Side DHCP Issues
Module 4: Configuring Network Connectivity
IPConfig is used to display IP configuration information and to release and renew addresses
Option
Description
/all
Displays all IP address configuration information
/release
Releases a dynamic IPv4 address lease
/renew
Renews a dynamic IPv4 address lease

13. Types of Computer Names
Course 6292A
Types of Computer Names
Module 4: Configuring Network Connectivity
Name
Description
Host name
Up to 255 characters in length
Can contain alphabetic and numeric characters, periods, and hyphens
Part of FQDN
NetBIOS name
Represent a single computer or group of computers
15 characters used for the name
16th character identifies service
Flat namespace

14. Methods for Resolving Computer Names
Course 6292A
Methods for Resolving Computer Names
Module 4: Configuring Network Connectivity
DNS is the name resolution tool of choice for Windows 7 ü
WINS is retained for backward compatibility
The Global Domain Names feature can remove the need for WINS
DNS is a service that manages the resolution of host names to IP addresses
Domain Name System (DNS)
Windows Internet Naming Service (WINS)
WINS is a NetBIOS name server used to resolve NetBIOS
NetBIOS Name Cache 4
WINS Server
Broadcast 6
DNS Resolver Cache 2
Local Host Name 1
LMHOSTS File 7
DNS Server 3 5

15. Tools for Troubleshooting Networks
Course 6292A
Tools for Troubleshooting Networks
Module 4: Configuring Network Connectivity
Tool
Purpose
Event Viewer
Enables you to view errors relating to network activity
Windows Network Diagnostics
Helps to diagnose and resolve network problems
IPCONFIG
Displays IP configuration information and controls the DNS resolver cache
PING and PathPING
Verifies basic IP connectivity
TRACERT
Verifies a routing path
NSLOOKUP
Enables testing of name resolution

16. Process for Troubleshooting Networks
Course 6292A
Process for Troubleshooting Networks
Module 4: Configuring Network Connectivity
Event Viewer
Windows Network
Diagnostics
NSlookup
IPConfig
Tracert
Ping