Draytek Vigor 3100 Series, User Manual, Page: 76 / 122

Vigor3100 Series User’s Guide 70
Medium Authentication Header (AH) means data will be authenticated,
but not be encrypted. By default, this option is active.
High Encapsulating Security Payload (ESP)- means
payload (data) will be encrypted and authenticated. Select from
below:
DES without Authentication -Use DES encryption algorithm
and not apply any authentication scheme.
DES with Authentication- Use DES encryption algorithm and
apply MD5 or SHA-1 authentication algorithm.
3DES without Authentication -Use triple DES encryption
algorithm and not apply any authentication scheme.
3DES with Authentication- Use triple DES encryption
algorithm and apply MD5 or SHA-1 authentication algorithm.
AES without Authentication -Use AES encryption algorithm
and not apply any authentication scheme.
AES with Authentication- Use AES encryption algorithm and
apply MD5 or SHA-1 authentication algorithm.
Advanced Specify mode, proposal and key life of each IKE phase,
Gateway etc.
The window of Advance setup is as show below:
IKE phase 1 mode - Select from Main mode and Aggressive
mode. The ultimate outcome is to exchange security proposals
to create a protected secure channel.
Main mode is more secure
than Aggressive mode since more exchanges are done in a
secure channel to set up the IPSec session. However, the
Aggressive mode is faster. The default value in Vigor router is
Main mode.
IKE phase 1 proposal- To propose the local available
authentication schemes and encryption algorithms to the VPN
peers, and get its feedback to find a match. Two combinations
are available for Aggressive mode and nine for
Main mode. We
suggest you select the combination that covers the most
schemes.
IKE phase 2 proposal- To propose the local available
algorithms to the VPN peers, and get its feedback to find a
match. Three combinations are available for both modes. We
suggest you select the combination that covers the most
algorithms.
IKE phase 1 key lifetime- For security reason, the lifetime of
key should be defined. The default value is 28800 seconds. You