Draytek Vigor2130 series User Manual page 187

Advanced Security
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Vigor2130 Series User's Guide
IKE Phase 1 proposal - Propose the local available
authentication schemes and encryption algorithms to the
VPN peers, and get its feedback to find a match.
IKE Phase 2 proposal - Propose the local available
algorithms to the VPN peers, and get its feedback to find a
match.
IKE phase 1 key lifetime-For security reason, the lifetime
of key should be defined. The default value is 28800
seconds. You may specify a value in between 900 and 86400
seconds.
IKE phase 2 key lifetime-For security reason, the lifetime
of key should be defined. The default value is 3600 seconds.
You may specify a value in between 600 and 86400 seconds.
Perfect Forward Secrecy - The IKE Phase 1 key will be
reused to avoid the computation complexity in phase 2. The
default value is inactive this function.
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