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70-270: MCSE Guide to Microsoft Windows XP Professional Second Edition, Enhanced Chapter 8: Internetworking with Remote Access. Objectives. Understand remote access under Windows XP Configure various remote access connection types for a Windows XP Professional system

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70-270: MCSE Guide to Microsoft Windows XP ProfessionalSecond Edition, Enhanced Chapter 8: Internetworking with Remote Access

objectives
Objectives
  • 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
  • Understand the Internet Options applet

Guide to MCSE 70-270, Second Edition, Enhanced

objectives1
Objectives
  • Implement Internet Connection Sharing and the Internet Connection Firewall
  • Understand the native Internet tools and utilities
  • Troubleshoot remote access problems

Guide to MCSE 70-270, Second Edition, Enhanced

remote access
Remote Access
  • Components:
    • Clients
    • Protocols
    • WAN connectivity
    • Security
    • Server
    • LAN protocols

Guide to MCSE 70-270, Second Edition, Enhanced

features of remote access in windows xp
Features Of Remote Access in Windows XP
  • Standard component
  • No manual service installation required

Guide to MCSE 70-270, Second Edition, Enhanced

ppp multilink
PPP Multilink
  • Increase overall throughput
  • Combine bandwidth of two or more physical communication links
  • Based on Internet Engineering Task Force (IETF) standard RFC 1717

Guide to MCSE 70-270, Second Edition, Enhanced

vpn protocols
VPN Protocols
  • Point-to-Point Tunneling Protocol (PPTP)
    • Supports multiprotocol VPNs
    • Encrypted and secure
  • Layer Two Tunneling Protocol (L2TP)
    • Developed by Cisco Systems
    • Encapsulates PPP frames for transport over various networks
    • Used in combination with IPSec

Guide to MCSE 70-270, Second Edition, Enhanced

restartable file copy
Restartable File Copy
  • Automatically retransmits incomplete file transfers
  • Faster transmission of large files over lower-quality connections
  • Reduced cost from avoiding retransmission of the whole file
  • Reduced frustration from interrupted transfers

Guide to MCSE 70-270, Second Edition, Enhanced

idle disconnect
Idle Disconnect
  • Shuts off remote access connection after specified period of inactivity
  • Reduces the costs of remote access
  • Frees up inactive remote access ports

Guide to MCSE 70-270, Second Edition, Enhanced

autodial and logon dial
Autodial and Logon Dial
  • Automatically connect and retrieve files and applications stored on remote system

Guide to MCSE 70-270, Second Edition, Enhanced

client and server enhancements
Client and Server Enhancements
  • Number of client and server components
  • Allow third-party vendors to develop remote access and dial-up networking applications

Guide to MCSE 70-270, Second Edition, Enhanced

look and feel
Look and Feel
  • Undergone changes since Windows 2000
  • Significantly different from similar utilities in Windows NT and Windows 95/98
  • Integrated with networking components
  • Network Connections:
    • Multipurpose management interface
    • Both standard LAN networking links and remote access links are established and configured

Guide to MCSE 70-270, Second Edition, Enhanced

callback security
Callback Security
  • Control access to the system from specified phone numbers
  • Calls may originate only from known phone number locations
  • Remote access client can set the phone number dynamically

Guide to MCSE 70-270, Second Edition, Enhanced

wan connectivity
WAN Connectivity
  • Create WAN by connecting existing LANs
  • Remote access over:
    • Telephone
    • ISDN
    • Cable modems
    • Campus networks
    • Other communication lines
  • Cost-effective solution if you have minimal to moderate network traffic between sites

Guide to MCSE 70-270, Second Edition, Enhanced

internet network access protocols
Internet Network Access Protocols
  • Supports all standard protocols for remote Internet access
  • Remote access protocol dependent on the client and server OS and LAN protocols

Guide to MCSE 70-270, Second Edition, Enhanced

slide16
PPP
  • Current standard for remote access
  • Microsoft recommends using PPP
  • Flexible
  • Industry standard

Guide to MCSE 70-270, Second Edition, Enhanced

slide17
PPTP
  • Allows you to establish a secure remote access pipeline over the Internet
  • “Tunnel” IPX or TCP/IP traffic inside PPP packets
  • Significant features:
    • Low transmission costs
    • Hardware costs
    • Administrative overhead
    • Improved security

Guide to MCSE 70-270, Second Edition, Enhanced

ppp mp
PPP-MP
  • Combines two or more physical remote access links into one logical bundle with greater bandwidth
  • Can combine analog and digital links
  • All connections to be aggregated must be of the same technology type

Guide to MCSE 70-270, Second Edition, Enhanced

slide19
SLIP
  • One of the first protocols developed specifically for TCP/IP support over dial-up connections
  • Included in Windows XP for backward-compatibility
  • Does not support Dynamic Host Configuration Protocol (DHCP)

Guide to MCSE 70-270, Second Edition, Enhanced

ipsec
IPSec
  • Security measure added to TCP/IP
  • Negotiates secure encrypted communications link
  • Uses public and private encryption key management
  • Can be used over RAS/WAN link
  • Can be used within LAN

Guide to MCSE 70-270, Second Edition, Enhanced

telephony features
Telephony Features
  • TAPI
    • Remote access Telephony API
    • Supplies uniform way of accessing:
      • Fax
      • Data
      • Voice
    • Part of Windows Open System Architecture (WOSA)

Guide to MCSE 70-270, Second Edition, Enhanced

remote access configuration
Remote Access Configuration
  • Integrated default component of Windows XP
  • Configured and managed from Network Connections window

Guide to MCSE 70-270, Second Edition, Enhanced

network connections window
Network Connections Window

Guide to MCSE 70-270, Second Edition, Enhanced

installing remote access hardware
Installing Remote Access Hardware
  • Hardware must be installed before remote connection established
  • Windows XP inspects hardware and attempts to identify any new devices
  • Windows XP attempts to locate and install drivers for new device

Guide to MCSE 70-270, Second Edition, Enhanced

phone and modem options
Phone and Modem Options
  • Primary Control Panel applet for managing remote access devices and operations
  • Used to control:
    • Dialing rules
    • Configure remote access devices
    • Configure telephony driver properties

Guide to MCSE 70-270, Second Edition, Enhanced

connecting to the internet
Connecting to the Internet
  • Connect to the Internet Wizard:
    • Choose from a list of Internet service providers (ISPs)
    • Set up my connection manually
    • Use the CD I got from an ISP

Guide to MCSE 70-270, Second Edition, Enhanced

connection status dialog box
Connection Status Dialog Box

Guide to MCSE 70-270, Second Edition, Enhanced

internet connection sharing
Internet Connection Sharing
  • Used to share single network connection with small group of networked computers
  • Enabled on Advanced tab of connection object’s Properties dialog box
  • Incorporates:
    • Network Address Translation (NAT) function
    • Dynamic Host Configuration Protocol (DHCP) address allocator
    • Domain Name System (DNS) proxy

Guide to MCSE 70-270, Second Edition, Enhanced

internet connection firewall
Internet Connection Firewall
  • Security measure for protecting network connections from unwanted traffic
  • Can set restrictions on traffic in and out of network to an external network or the Internet
  • Much-needed feature for systems that employ shared broadband connections
  • Stateful firewall
  • Blocks most incoming traffic by default

Guide to MCSE 70-270, Second Edition, Enhanced

connecting to the network at my workplace
Connecting to the Network at My Workplace
  • Virtual Private Networking (VPN)
    • Trend in mobile computing
    • Employs the Internet as long-distance carrier to enable distant, secure LAN connections
  • Windows XP VPN:
    • Encrypts all traffic
    • Setup with New Connection Wizard

Guide to MCSE 70-270, Second Edition, Enhanced

setting up an advanced connection
Setting Up an Advanced Connection
  • Used to:
    • Establish direct connection between two systems
      • Transfer large amount of data with no network connection
      • Use serialor parallel cable
    • Configure system to answer inbound dial-up calls
      • Can act as remote access server for single incoming connection
      • Only for special-purpose applications

Guide to MCSE 70-270, Second Edition, Enhanced

alternate ip configuration
Alternate IP Configuration
  • Available whenever networking connection object uses DHCP
  • Preconfigure alternate default IP configuration if DHCP fails
  • Prevents APIPA address from being assigned

Guide to MCSE 70-270, Second Edition, Enhanced

remote access security
Remote Access Security
  • Built on Windows XP local and network security
  • Dial-up connection objects
    • Authentication and encryption security options
  • VPN
    • Used to secure remote access

Guide to MCSE 70-270, Second Edition, Enhanced

certificates
Certificates
  • Provide proof of identity for network and Internet communications
  • Allow systems to trust unknown online parties for the purposes of:
    • Exchanging information
    • Exchanging Data
    • Performing e-commerce
  • Product of cryptographic mechanism known as public key infrastructure (PKI)

Guide to MCSE 70-270, Second Edition, Enhanced

certificates continued
Certificates (continued)
  • Certificate Authority (CA):
    • Responsible for:
      • Creating
      • Issuing
      • Managing
      • Revoking certificates
    • Can be server computer system within organization’s network or service offered by independent third-party organization

Guide to MCSE 70-270, Second Edition, Enhanced

internet options applet
Internet Options Applet
  • Used to define settings for Internet Explorer and general Internet access
  • Four Web zones:
    • Internet
    • Local intranet
    • Trusted sites
    • Restricted sites

Guide to MCSE 70-270, Second Edition, Enhanced

internet options applet continued
Internet Options Applet (continued)
  • Security restrictions:
    • Low
    • Medium Low
    • Medium
    • High

Guide to MCSE 70-270, Second Edition, Enhanced

windows xp and the internet
Windows XP and the Internet
  • Tools to help access the Internet:
    • Internet Explorer
    • Outlook Express
    • FTP client,
    • Telnet client
    • Internet Information Server (IIS)

Guide to MCSE 70-270, Second Edition, Enhanced

internet explorer
Internet Explorer
  • Version 6.0 is included
  • State-of-the-art Web browser
  • Tightly integrated with other Windows applications
  • Wide range of security related configuration options
  • Can be used as FTP client.

Guide to MCSE 70-270, Second Edition, Enhanced

outlook express
Outlook Express
  • Popular e-mail client utility
  • Part of Microsoft Office
  • Outlook Express included in Windows XP
  • Used to read and write e-mail
  • Used to file and sort messages
  • Contact management tool

Guide to MCSE 70-270, Second Edition, Enhanced

ftp client
FTP Client
  • Command-line implementation of FTP client included in Windows XP
  • Numerous freeware and shareware GUI implementations:
    • More user-friendly

Guide to MCSE 70-270, Second Edition, Enhanced

telnet client
Telnet Client
  • Simple tool provided in Windows XP
  • Attempts to establish Telnet session with remote system based on domain name or IP address

Guide to MCSE 70-270, Second Edition, Enhanced

internet information server
Internet Information Server
  • Reduced functionality version of Internet Information Server (IIS) included with Windows XP
  • Allows system to host Web and FTP services
  • Limited to 10 simultaneous connections
  • Not designed or intended for public Web/FTP site hosting

Guide to MCSE 70-270, Second Edition, Enhanced

order prints online
Order Prints Online
  • Feature of the My Pictures folder
  • Starts the Online Print Ordering Wizard
  • Requires that Internet access be available

Guide to MCSE 70-270, Second Edition, Enhanced

client vs server based remote access
Client Vs. Server-based Remote Access
  • Limited to a single incoming dial-up connection
  • Can support only 10 simultaneous network connections
  • Can share an Internet link with a workgroup

Guide to MCSE 70-270, Second Edition, Enhanced

remote access troubleshooting
Remote Access Troubleshooting
  • Problems can be fairly elusive
  • Check:
    • Physical connections (phone lines, serial cables, etc.)
    • Power to external devices
    • Properly installed and updated drivers
    • Properly configured settings
    • Correct authentication credentials
    • Similar encryption or security requirements
    • Proper protocol requirements and settings

Guide to MCSE 70-270, Second Edition, Enhanced

remote access troubleshooting continued
Remote Access Troubleshooting (continued)
  • Log files:
    • File containing all communications made between the OS and modem device during connection establishment
    • PPP.LOG
    • System log

Guide to MCSE 70-270, Second Edition, Enhanced

summary
Summary
  • Windows XP works with various internetworking and remote access protocols
  • Windows XP provides security and encryption features for remote access
  • Internet Connection Sharing can be used to share a single ISP link with a small network
  • Certificates are used to prove identity and support secured online transactions

Guide to MCSE 70-270, Second Edition, Enhanced

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