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70-270: MCSE Guide to Microsoft Windows XP Professional Chapter 8: Internetworking with Remote Access

70-270: MCSE Guide to Microsoft Windows XP Professional 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 Install remote access hardware

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70-270: MCSE Guide to Microsoft Windows XP Professional Chapter 8: Internetworking with Remote Access

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  1. 70-270: MCSE Guide to Microsoft Windows XP ProfessionalChapter 8: Internetworking with Remote Access

  2. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  3. Objectives • Implement Internet Connection Sharing and the Internet Connection Firewall • Understand the native Internet tools and utilities • Troubleshoot remote access problems 70-270: MCSE Guide to Microsoft Windows XP Professional

  4. Remote Access • Components: • Clients • Protocols • WAN connectivity • Security • Server • LAN protocols 70-270: MCSE Guide to Microsoft Windows XP Professional

  5. Features Of Remote Access in Windows XP • Standard component • No manual service installation required 70-270: MCSE Guide to Microsoft Windows XP Professional

  6. PPP Multilink • Increase overall throughput • Combine bandwidth of two or more physical communication links • Based on Internet Engineering Task Force (IETF) standard RFC 1717 70-270: MCSE Guide to Microsoft Windows XP Professional

  7. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  8. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  9. Idle Disconnect • Shuts off remote access connection after specified period of inactivity • Reduces the costs of remote access • Frees up inactive remote access ports 70-270: MCSE Guide to Microsoft Windows XP Professional

  10. Autodial and Logon Dial • Automatically connect and retrieve files and applications stored on remote system 70-270: MCSE Guide to Microsoft Windows XP Professional

  11. Client and Server Enhancements • Number of client and server components • Allow third-party vendors to develop remote access and dial-up networking applications 70-270: MCSE Guide to Microsoft Windows XP Professional

  12. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  13. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  14. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  15. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  16. PPP • Current standard for remote access • Microsoft recommends using PPP • Flexible • Industry standard 70-270: MCSE Guide to Microsoft Windows XP Professional

  17. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  18. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  19. 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) 70-270: MCSE Guide to Microsoft Windows XP Professional

  20. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  21. Telephony Features • TAPI • Remote access Telephony API • Supplies uniform way of accessing: • Fax • Data • Voice • Part of Windows Open System Architecture (WOSA) 70-270: MCSE Guide to Microsoft Windows XP Professional

  22. Remote Access Configuration • Integrated default component of Windows XP • Configured and managed from Network Connections window 70-270: MCSE Guide to Microsoft Windows XP Professional

  23. Network Connections Window 70-270: MCSE Guide to Microsoft Windows XP Professional

  24. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  25. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  26. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  27. Connection Status Dialog Box 70-270: MCSE Guide to Microsoft Windows XP Professional

  28. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  29. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  30. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  31. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  32. Alternate IP Configuration • Available whenever networking connection object uses DHCP • Preconfigure alternate default IP configuration if DHCP fails • Prevents APIPA address from being assigned 70-270: MCSE Guide to Microsoft Windows XP Professional

  33. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  34. 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) 70-270: MCSE Guide to Microsoft Windows XP Professional

  35. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  36. Internet Options Applet • Used to define settings for Internet Explorer and general Internet access • Four Web zones: • Internet • Local intranet • Trusted sites • Restricted sites 70-270: MCSE Guide to Microsoft Windows XP Professional

  37. Internet Options Applet (continued) • Security restrictions: • Low • Medium Low • Medium • High 70-270: MCSE Guide to Microsoft Windows XP Professional

  38. Windows XP and the Internet • Tools to help access the Internet: • Internet Explorer • Outlook Express • FTP client, • Telnet client • Internet Information Server (IIS) 70-270: MCSE Guide to Microsoft Windows XP Professional

  39. 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. 70-270: MCSE Guide to Microsoft Windows XP Professional

  40. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  41. FTP Client • Command-line implementation of FTP client included in Windows XP • Numerous freeware and shareware GUI implementations: • More user-friendly 70-270: MCSE Guide to Microsoft Windows XP Professional

  42. Telnet Client • Simple tool provided in Windows XP • Attempts to establish Telnet session with remote system based on domain name or IP address 70-270: MCSE Guide to Microsoft Windows XP Professional

  43. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  44. Order Prints Online • Feature of the My Pictures folder • Starts the Online Print Ordering Wizard • Requires that Internet access be available 70-270: MCSE Guide to Microsoft Windows XP Professional

  45. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  46. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

  47. Remote Access Troubleshooting (continued) • Log files: • File containing all communications made between the OS and modem device during connection establishment • PPP.LOG • System log 70-270: MCSE Guide to Microsoft Windows XP Professional

  48. 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 70-270: MCSE Guide to Microsoft Windows XP Professional

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