Billion Electric Company BIPAC-741 GE V2.0 - Manual (Page 40)

Chapter 3 Configuration
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Perfect Forward Secrecy: Enable this to change encryption keys during the second phase of
VPN negotiation. This function will provide better security, but extends the VPN negotiation
time.
Pre-shared Key: This is a string from 4 characters to 128 characters. Both sides should use the
same key.
Click Advanced Option to get the following figure.
SA Lifetime: Specify the number of minutes that a VPN tunnel will stay active before new
encryption and authentication key will be exchanged. The SA Lifetime may range from 10 to
10,000 minutes.
Phase 1 (IKE): To issue an initial connection request for a new VPN tunnel. Default 240
minutes, range from 5 to 15,000 minutes.
Phase 2 (IPSec): To negotiate and establish secure authentication. Default 60 minutes, range
from 5 to 15,000 minutes.
Select the Change button to update the setting.
3.6.3.6 Virtual Server
When you click Virtual Server, you get the following figure.