Draytek Vigor 2910 User Manual page 115

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 shown as 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 thirty for Main mode.
We suggest you select the combination that covers the most
schemes. Below shows the available proposals:
Vigor2910 Series User's Guide 109