![background image](http://html.mh-extra.com/html/zyxel-communications/vmg5313-b10a/vmg5313-b10a_user-manual_944375257.webp)
Chapter 22 VPN
VMG5313-B10A/-B30A Series User’s Guide
257
Perfect Forward
Secrecy (PFS)
Select whether or not you want to enable Perfect Forward Secrecy (PFS)
PFS changes the root key that is used to generate encryption keys for each IPSec SA. The
longer the key, the more secure the encryption, but also the longer it takes to encrypt and
decrypt information. Both routers must use the same DH key group. Choices are:
None
- do not use any random number.
768bit(DH Group1)
- use a 768-bit random number
1024bit(DH Group2)
- use a 1024-bit random number
1536bit(DH Group5)
- use a 1536-bit random number
2048bit(DH Group14)
- use a 2048-bit random number
3072bit(DH Group15)
- use a 3072-bit random number
4096bit(DH Group16)
- use a 4096-bit random number
Key Life Time
Define the length of time before an IPSec SA automatically renegotiates in this field.
A short SA Life Time increases security by forcing the two VPN gateways to update the
encryption and authentication keys. However, every time the VPN tunnel renegotiates, all
users accessing remote resources are temporarily disconnected.
The following fields are available if you select Manual in the Key Exchange Method field.
Encryption
Algorithm
Select which key size and encryption algorithm to use in the IKE SA. Choices are:
DES
- a 56-bit key with the DES encryption algorithm
3DES
- a 168-bit key with the DES encryption algorithm
EPS_NULL
- no encryption key or algorithm
Encryption
Key
This field is applicable when you select an Encryption Algorithm.
Enter the encryption key, which depends on the encryption algorithm.
DES
- type a unique key 16 hexadecimal characters long
3DES
- type a unique key 48 hexadecimal characters long
Authentication
Algorithm
Select which hash algorithm to use to authenticate packet data. Choices are MD5, SHA1.
SHA is generally considered stronger than MD5, but it is also slower.
Authentication
Key
Enter the authentication key, which depends on the authentication algorithm.
MD5
- type a unique key 32 hexadecimal characters long
SHA1
- type a unique key 40 hexadecimal characters long
SPI
Type a unique SPI (Security Parameter Index) in hexadecimal characters.
The SPI is used to identify the VMG during authentication.
The VMG and remote IPSec router must use the same SPI.
OK
Click
OK
to save your changes.
Cancel
Click
Cancel
to restore your previously saved settings.
Table 101
Security > IPSec VPN: Add/Edit
LABEL
DESCRIPTION
Содержание VMG5313-B10A
Страница 15: ...15 PART I User s Guide ...
Страница 16: ...16 ...
Страница 32: ...Chapter 2 The Web Configurator VMG5313 B10A B30A Series User s Guide 32 ...
Страница 40: ...Chapter 4 Tutorials VMG5313 B10A B30A Series User s Guide 40 ...
Страница 71: ...71 PART II Technical Reference ...
Страница 72: ...72 ...
Страница 78: ...Chapter 5 Network Map and Status Screens VMG5313 B10A B30A Series User s Guide 78 ...
Страница 106: ...Chapter 6 Broadband VMG5313 B10A B30A Series User s Guide 106 ...
Страница 162: ...Chapter 9 Routing VMG5313 B10A B30A Series User s Guide 162 ...
Страница 180: ...Chapter 10 Quality of Service QoS VMG5313 B10A B30A Series User s Guide 180 ...
Страница 198: ...Chapter 11 Network Address Translation NAT VMG5313 B10A B30A Series User s Guide 198 ...
Страница 210: ...Chapter 14 Interface Group VMG5313 B10A B30A Series User s Guide 210 ...
Страница 218: ...Chapter 15 USB Service VMG5313 B10A B30A Series User s Guide 218 ...
Страница 232: ...Chapter 17 Firewall VMG5313 B10A B30A Series User s Guide 232 ...
Страница 240: ...Chapter 19 Parental Control VMG5313 B10A B30A Series User s Guide 240 ...
Страница 250: ...Chapter 21 Certificates VMG5313 B10A B30A Series User s Guide 250 ...
Страница 296: ...Chapter 23 Voice VMG5313 B10A B30A Series User s Guide 296 ...
Страница 300: ...Chapter 24 Log VMG5313 B10A B30A Series User s Guide 300 ...
Страница 308: ...Chapter 27 xDSL Statistics VMG5313 B10A B30A Series User s Guide 308 ...
Страница 318: ...Chapter 30 Remote Management VMG5313 B10A B30A Series User s Guide 318 ...
Страница 322: ...Chapter 32 TR 064 VMG5313 B10A B30A Series User s Guide 322 ...
Страница 332: ...Chapter 36 Log Setting VMG5313 B10A B30A Series User s Guide 332 ...
Страница 335: ...Chapter 37 Firmware Upgrade VMG5313 B10A B30A Series User s Guide 335 Figure 176 Error Message ...
Страница 336: ...Chapter 37 Firmware Upgrade VMG5313 B10A B30A Series User s Guide 336 ...
Страница 352: ...Chapter 40 Troubleshooting VMG5313 B10A B30A Series User s Guide 352 ...
Страница 353: ...353 PART III Appendices Appendices contain general information Some information may not apply to your device ...
Страница 354: ...354 ...
Страница 374: ...Appendix B Wireless LANs VMG5313 B10A B30A Series User s Guide 374 ...
Страница 390: ...Appendix E Legal Information VMG5313 B10A B30A Series User s Guide 390 ...