Draytek Vigor 3200 Series User Manual page 262

Item
Item
Allowed Dial-In
Type
Vigor3200 Series User's Guide
Description
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 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 Secret (PFS)-The IKE Phase 1 key will be
reused to avoid the computation complexity in phase 2. The
default value is inactive this function.
Local ID-In Aggressive mode, Local ID is on behalf of the IP
address while identity authenticating with remote VPN server.
The length of the ID is limited to 47 characters.
Description
Determine the dial-in connection with different types.
PPTP - Allow the remote dial-in user to make a PPTP VPN
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