P-661H/HW Series User’s Guide
Chapter 12 Introduction to IPSec
199
12.2 IPSec Architecture
The overall IPSec architecture is shown as follows.
Figure 118
IPSec Architecture
12.2.1 IPSec Algorithms
The
ESP
(Encapsulating Security Payload) Protocol (RFC 2406) and
AH
(Authentication
Header) protocol (RFC 2402) describe the packet formats and the default standards for packet
structure (including implementation algorithms).
The Encryption Algorithm describes the use of encryption techniques such as DES (Data
Encryption Standard) and Triple DES algorithms.
The Authentication Algorithms, HMAC-MD5 (RFC 2403) and HMAC-SHA-1 (RFC 2404,
provide an authentication mechanism for the
AH
and
ESP
protocols. Please see
12.2.2 Key Management
Key management allows you to determine whether to use IKE (ISAKMP) or manual key
configuration in order to set up a VPN.
12.3 Encapsulation
The two modes of operation for IPSec VPNs are
Transport
mode and
Tunnel
mode.
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Страница 43: ...P 661H HW Series User s Guide Chapter 1 Getting To Know Your ZyXEL Device 43 Figure 5 Connecting a Microfilter...
Страница 44: ...P 661H HW Series User s Guide 44 Chapter 1 Getting To Know Your ZyXEL Device...
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Страница 132: ...P 661H HW Series User s Guide 132 Chapter 6 Wireless LAN...
Страница 191: ...P 661H HW Series User s Guide Chapter 10 Trend Micro Security Services 191 Figure 113 Security Setting ActiveX Controls...
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Страница 196: ...P 661H HW Series User s Guide 196 Chapter 11 Content Filtering...
Страница 202: ...P 661H HW Series User s Guide 202 Chapter 12 Introduction to IPSec...
Страница 230: ...P 661H HW Series User s Guide 230 Chapter 13 VPN Screens...
Страница 234: ...P 661H HW Series User s Guide 234 Chapter 14 Static Route...
Страница 246: ...P 661H HW Series User s Guide 246 Chapter 15 Bandwidth Management...
Страница 250: ...P 661H HW Series User s Guide 250 Chapter 16 Dynamic DNS Setup...
Страница 280: ...P 661H HW Series User s Guide 280 Chapter 19 System...
Страница 290: ...P 661H HW Series User s Guide 290 Chapter 21 Tools...
Страница 296: ...P 661H HW Series User s Guide 296 Chapter 23 Troubleshooting...
Страница 300: ...P 661H HW Series User s Guide 300 Appendix A...
Страница 304: ...P 661H HW Series User s Guide 304 Appendix C...
Страница 326: ...P 661H HW Series User s Guide 326 Appendix E...
Страница 328: ...P 661H HW Series User s Guide 328 Appendix F...
Страница 334: ...P 661H HW Series User s Guide 334 Appendix G...
Страница 368: ...P 661H HW Series User s Guide 368 Appendix K...
Страница 376: ...P 661H HW Series User s Guide 376 Figure 219 Java Sun...