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- Internetworking with Remote Access
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- Understand remote access under Windows XP
- Configure various remote access connection types for a Windows XP
Professional system
- Install remote access hardware
- Understand remote access security
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- Understand the Internet Options applet
- Implement Internet Connection Sharing and the Internet Connection
Firewall
- Understand the native Internet tools and utilities
- Troubleshoot remote access problems
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- You can use remote access service to logon to a Windows XP system for
user or administrative access while you’re away from the office
- Windows XP remote access configuration includes the following
components:
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- Windows XP remote access configuration includes the following components
(cont.):
- WAN Connectivity
- Security
- Server
- LAN protocol
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- PPP Multilink
- Allows you to increase overall throughput by combining the bandwidth of
two or more physical communication links
- Virtual private network (VPN) protocols
- Windows XP support two VPN protocols:
- Point-to-Point Tunneling Protocol (PPTP)
- Layer Two Tunneling Protocol (L2TP)
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- Restartable file copy
- Automatically retransmits incomplete file transfers produced by
interruption of remote access connectivity
- Provides the following:
- Faster transmission of large files over lower-quality connections
- Reduced cost from avoiding retransmission of the whole file
- Reduced frustrations from interrupted transfers
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- Idle disconnect
- Breaks off a remote access connection after a specified period of
inactivity
- Autodial and log-on dial
- You can configure remote access to automatically connect and retrieve
files and applications stored on a remote system
- Client and server enhancements
- Windows XP remote access includes a number of client and server
components that allow third-party vendors to develop remote access and
dial-up networking applications
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- Look and feel
- Windows XP remote access has undergone some changes since Windows 2000
- Remote access capabilities have now been integrated with the networking
components
- Callback security
- You can control access to the system from specified phone numbers by
using the Callback feature
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- WAN Connectivity
- Wide area networks (WANs) link sites that are often a considerable
physical distance apart
- You can improve the performance of remote access-based WANs in one of
three ways:
- Increasing bandwidth of the remote access connection
- Multilinking communication links using PPP Multilink
- Implementing PPTP over the Internet
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- PPP Multilink
- Variation of PPP that enables you to create one large high-bandwidth
pipe by banding together multiple PPP channels
- The remote access protocol used in establishing and maintaining a WAN
link is dependent on the client and server OS and LAN protocols
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- Point-to-Point Protocol (PPP)
- Current standard for remote access
- Remotes access protocol standards are defined in RFCs published by the
IETF and other working groups
- Microsoft recommends using PPP because it is flexible and is the
industry standard
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- Point-to-Point-Tunneling Protocol (PPTP)
- Allows you to establish a secure remote access pipeline over the public
Internet and to “tunnel” IPX or TCP/IP traffic inside PPP packets
- L2TP is a similar protocol developed by Cisco for use with IPSec to
support secure VPN links
- From a user’s perspective, it operates in the same manner as PPTP
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- PPTP’s significant features include:
- Transmission costs
- Hardware costs
- Administrative overhead
- Improved security
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- PPP multilink protocol (PPP-MP)
- Combines two or more physical remote access links into one logical
bundle with greater bandwidth
- Serial Line Internet Protocol (SLIP)
- One of the first protocols developed specifically for TCP/IP support
over dial-up connections
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- Telephony features
- TAPI
- The remote access Telephony API
- Supplies a uniform way of accessing fax, data, and voice
- Part of the Windows Open System Architecture (WOSA) developed to aid
third-party vendors in designing powerful, integrated telephony
applications
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- The Connect t the Internet Wizard selection can be used to:
- Choose from a list Internet service providers (ISPs)
- Set up my connection manually
- Use the CD provided by an ISP
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- Telecommuters and mobile personnel often need to communicate with the
office LAN for a wide variety of purposes
- Because a remote access link supports all network functions, remote
connections to the LAN are very useful
- The Connect to network at my workplace option on the second page of the
New Connection Wizard is used to create direct dial-up and VPN
connections to an office LAN
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- The Set Up An Advanced Connection option on the second page of the New
Connection Wizard can be used to:
- Establish a direct connection between two systems
- Configure the system to answer inbound dial-up calls
- These are very different activities
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- Before any remote access connection can be established, hardware
required by that connection must be physically present and its drivers
properly installed
- Under Windows XP, the process of installing hardware is often simple and
requires little user input
- Upon boot-up, Windows XP inspect the hardware and attempts to identify
any new devices
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- Remote access security is built on Windows XP’s local and network
security
- Remote access boasts several additional security measures to aid in
keeping break-ins and unauthorized access to a minimum
- Dial-up connection objects have authentication and encryption security
options
- Remote access does not restrict the ability to dial out from a Windows
system
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- Used to share a single network connection with a small group of
networked computers
- The shared connection can be a link to the Internet or any type of
network
- By enabling sharing for a connection object, you allow other computers
on your network to access resources over that external link
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- A security measure for protecting network connections from unwanted
traffic
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- Windows XP features a number of tools to help you access the vast
resources of the Internet:
- Internet Explorer
- Outlook Express
- FTP client
- Telnet client
- Internet Information Server (IIS)
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- Feature of the My Pictures folder and any media folder defined as an
image repository
- This command launches the Online Print Ordering Wizard
- The Wizard requires that Internet access be available
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- Choosing which platform to use as a remote access server is usually
straightforward
- It is clear that a small workgroup network can use Windows XP
Professional as its remote access server if it can operate within the
connection limitations
- If an organization requires greater flexibility and connectivity, a
Windows Server should be selected to act as the remote access server
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- Your first approach to a remote access problem should include
considerations for:
- Physical connections
- Power to external devices
- Properly installed and updated drivers
- Properly configured settings
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- Your first approach to a remote access problem should include
considerations for (cont.):
- Correct authentication credentials
- Similar encryption or security requirements
- Proper protocol requirements and settings
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- Be familiar with the significant features of remote access in Windows XP
- Understand:
- Remote access WAN connections and protocols
- How to install and configure remote access
- How to take advantage of remote access dial-up networking and security
features
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- Be familiar with how to dial into your Windows XP Professional system
from the outside or use it to dial out to a service provider
- Understand the Internet access features built into Windows XP and how
they can be employed to gain access to vast public and private resources
- Windows XP is designed to participate in virtual private networks (VPNs)
by establishing an encrypted link between two system over the Internet
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