Chapter 5 Quick Setup Wizards
UAG Series User’s Guide
77
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Perfect Forward Secrecy (PFS)
: Disabling PFS allows faster IPSec setup, but is less secure.
Select DH1, DH2 or DH5 to enable PFS.
DH5
is more secure than
DH1
or
DH2
(although it may
affect throughput). DH1 refers to Diffie-Hellman Group 1 a 768 bit random number. DH2 refers to
Diffie-Hellman Group 2 a 1024 bit (1Kb) random number. DH5 refers to Diffie-Hellman Group 5 a
1536 bit random number (more secure, yet slower).
•
Local Policy (IP/Mask)
: Type the IP address of a computer on your network. You can also
specify a subnet. This must match the remote IP address configured on the remote IPSec device.
•
Remote Policy (IP/Mask)
: Type the IP address of a computer behind the remote IPSec device.
You can also specify a subnet. This must match the local IP address configured on the remote
IPSec device.
•
Nailed-Up
: This displays for the site-to-site and remote access client role scenarios. Select this
to have the UAG automatically renegotiate the IPSec SA when the SA life time expires.
5.3.10 VPN Advanced Wizard - Summary
This is a read-only summary of the VPN tunnel settings.
Figure 55
VPN Advanced Wizard: Summary
•
Rule Name
: Identifies the VPN connection (and the VPN gateway).
•
Secure Gateway
: IP address or domain name of the remote IPSec device.