11g Wireless Security Router User Guide
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Operation mode:
There two options in this mode:
Main
and
Aggressive
. Main
mode is the default and is more secure method. Aggressive mode
is used when the devices at the remote end of the VPN tunnel use
Aggressive mode. Mostly, it is used with dynamic IP addresses.
Whenever the Main or Aggressive modes are selected, the router
will accept both modes initialed by the remote VPN devices.
Encryption:
Select either DES or 3DES from the drop down list. 3DES is
default as it is the more secure option.
Authentication:
Select either MD5 or SHA from the drop down list. SHA default
as it is the more secure option.
Group:
Two Diffie-Hellman Groups can be selected from the drop down
list: 768-bit and 1024-bit. Diffie-Hellman is a technique that uses
public and private key for encryption and decryption.
Key Lifetime:
You may optionally select to have the key expire after a period
of time that you specify. Enter the number of seconds you’d like
the key to be available or leave the field blank for the key to last
indefinitely.