Draytek Vigor2960 Series User Manual page 259

Preshared Key
Security Protocol
DPD Delay
DPD Timeout
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Vigor2960 Series User's Guide
selected as Auth Type.
Type a pre-shared key for authentication if PSK is selected
as Auth Type.
Choose ESP to specify the IPSec protocol for the
Encapsulating Security Payload protocol. The data will be
encrypted and authenticated. Choose AH to specify the
IPSec protocol for the Authentication Header protocol. The
data will be authenticated but not be encrypted.
DPD means dead peer detection. It is a keep-alive timer. A
Hello message will be emitted periodically when a tunnel is
idle. Use the value 0 to disable this function. The
recommended value is 30 seconds if enabled.
It is the timeout timer. The peer will be declared dead once
no acknowledge message is received after timeout value.
Use the value 0 to disable this function. The recommended
value is 120 seconds if enabled.
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