Prestige 662HW Series User’s Guide
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Chapter 18 Introduction to IPSec
Figure 90
Encryption and Decryption
18.1.3.2 Data Confidentiality
The IPSec sender can encrypt packets before transmitting them across a network.
18.1.3.3 Data Integrity
The IPSec receiver can validate packets sent by the IPSec sender to ensure that the data has not
been altered during transmission.
18.1.3.4 Data Origin Authentication
The IPSec receiver can verify the source of IPSec packets. This service depends on the data
integrity service.
18.1.4 VPN Applications
The Prestige supports the following VPN applications.
• Linking Two or More Private Networks Together
Connect branch offices and business partners over the Internet with significant cost
savings and improved performance when compared to leased lines between sites.
• Accessing Network Resources When NAT Is Enabled
When NAT is enabled, remote users are not able to access hosts on the LAN unless the
host is designated a public LAN server for that specific protocol. Since the VPN tunnel
terminates inside the LAN, remote users will be able to access all computers that use
private IP addresses on the LAN.
• Unsupported IP Applications
A VPN tunnel may be created to add support for unsupported emerging IP applications.
See the chapter on
Getting to Know Your Prestige
for an example of a VPN application.
18.2 IPSec Architecture
The overall IPSec architecture is shown as follows.
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Страница 7: ...Prestige 662HW Series User s Guide 7 Customer Support...
Страница 43: ...Prestige 662HW Series User s Guide 43 Introduction to DSL...
Страница 53: ...Prestige 662HW Series User s Guide 53 Chapter 1 Getting To Know Your Prestige...
Страница 59: ...Prestige 662HW Series User s Guide 59 Chapter 2 Introducing the Web Configurator...
Страница 77: ...Prestige 662HW Series User s Guide 77 Chapter 5 Password Setup...
Страница 89: ...Prestige 662HW Series User s Guide 89 Chapter 7 DMZ...
Страница 111: ...Prestige 662HW Series User s Guide 111 Chapter 8 Wireless LAN Setup...
Страница 127: ...Prestige 662HW Series User s Guide 127 Chapter 9 WAN Setup...
Страница 139: ...Prestige 662HW Series User s Guide 139 Chapter 10 Network Address Translation NAT Screens...
Страница 157: ...Prestige 662HW Series User s Guide 157 Chapter 13 Firewalls...
Страница 203: ...Prestige 662HW Series User s Guide 203 Chapter 16 Content Access Control...
Страница 211: ...Prestige 662HW Series User s Guide 211 Chapter 17 Anti Virus Packet Scan...
Страница 217: ...Prestige 662HW Series User s Guide 217 Chapter 18 Introduction to IPSec...
Страница 249: ...Prestige 662HW Series User s Guide 249 Chapter 20 Remote Management Configuration...
Страница 263: ...Prestige 662HW Series User s Guide 263 Chapter 21 Universal Plug and Play UPnP...
Страница 269: ...Prestige 662HW Series User s Guide 269 Chapter 22 Logs Screens...
Страница 295: ...Prestige 662HW Series User s Guide 295 Chapter 24 Maintenance...
Страница 301: ...Prestige 662HW Series User s Guide 301 Chapter 25 Introducing the SMT...
Страница 305: ...Prestige 662HW Series User s Guide 305 Chapter 26 Menu 1 General Setup...
Страница 319: ...Prestige 662HW Series User s Guide 319 Chapter 29 Wireless LAN Setup...
Страница 325: ...Prestige 662HW Series User s Guide 325 Chapter 30 Internet Access...
Страница 339: ...Prestige 662HW Series User s Guide 339 Chapter 32 Static Route Setup...
Страница 343: ...Prestige 662HW Series User s Guide 343 Chapter 33 Bridging Setup...
Страница 375: ...Prestige 662HW Series User s Guide 375 Chapter 36 Filter Configuration...
Страница 395: ...Prestige 662HW Series User s Guide 395 Chapter 39 System Information and Diagnosis...
Страница 411: ...Prestige 662HW Series User s Guide 411 Chapter 40 Firmware and Configuration File Maintenance...
Страница 417: ...Prestige 662HW Series User s Guide 417 Chapter 41 System Maintenance...
Страница 421: ...Prestige 662HW Series User s Guide 421 Chapter 42 Remote Management...
Страница 433: ...Prestige 662HW Series User s Guide 433 Chapter 44 Call Scheduling...
Страница 449: ...Prestige 662HW Series User s Guide 449 Chapter 46 SA Monitor...
Страница 453: ...Prestige 662HW Series User s Guide 453 Chapter 47 Internal SPTGEN...
Страница 459: ...Prestige 662HW Series User s Guide 459 Appendix A Pin Assignments Figure 290 Ethernet Cable Pin Assignments...
Страница 479: ...Prestige 662HW Series User s Guide 479 Appendix C IP Subnetting...
Страница 485: ...Prestige 662HW Series User s Guide 485 Appendix E Wireless LAN and IEEE 802 11...
Страница 492: ...Prestige 662HW Series User s Guide Appendix H Triangle Route 492...
Страница 493: ...Prestige 662HW Series User s Guide 493 Appendix H Triangle Route...
Страница 525: ...Prestige 662HW Series User s Guide 525 Appendix K Example Internal SPTGEN Screens...
Страница 527: ...Prestige 662HW Series User s Guide 527 Appendix L Command Interpreter...
Страница 529: ...Prestige 662HW Series User s Guide 529 Appendix M Firewall Commands...
Страница 533: ...Prestige 662HW Series User s Guide 533 Appendix N NetBIOS Filter Commands...
Страница 535: ...Prestige 662HW Series User s Guide 535 Appendix O Brute Force Password Guessing Protection...