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Field
Description
DH Group
Only for Phase-1 (IKE) Parameters
The Diffie-Hellman group defines the parameter set used as
the basis for the key calculation during phase 1. "MODP" as
supported by bintec elmeg devices stands for "modular expo-
nentiation".
Possible values:
•
#FDE (&
: During the Diffie-Hellman key calculation,
modular exponentiation at 768 bits is used to create the en-
cryption material.
•
# - (&
: During the Diffie-Hellman key calculation,
modular exponentiation at 1024 bits is used to create the en-
cryption material.
•
# CD (&
: During the Diffie-Hellman key calculation,
modular exponentiation at 1536 bits is used to create the en-
cryption material.
Lifetime
Create a lifetime for phase 1 keys.
As for RFC 2407, the default value is eight hours, which means
the key must be renewed once eight hours have elapsed.
The following options are available for defining the Lifetime:
• Input in Seconds: Enter the lifetime for phase 1 key in
seconds. The value can be a whole number from 0 to
2147483647. The default value is
--
.
• Input in kBytes: Enter the lifetime for phase 1 keys as
amount of data processed in kBytes. The value can be a
whole number from 0 to 2147483647. The default value is
.
The default value as per RFC is used
seconds and
Kbytes are entered.
Authentication Method Only for Phase-1 (IKE) Parameters
Select the authentication method.
Possible values:
•
6! " ?!
(default value): If you do not use certific-
ates for the authentication, you can select Preshared Keys.
These are configured during peer configuration in the
13 VPN
Gigaset Communications GmbH
268
hybird 120 Gigaset Edition