HP SuperStack Firewall Series Bedienungsanleitung Seite 131

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Configuring a VPN Security Association 131
alphanumeric characters with a minimum length of 4 characters and a
maximum of 128 characters. Precautions should be taken when
delivering/exchanging this shared secret to assure that a third party
cannot compromise the security of a VPN tunnel.
EnteryourchosensharedsecretintheShared Secret field.
This setting is not available if the IPSec Keying Mode is set to Manual Key.
Encryption Key
The Encryption Key is a hexadecimal number that is used to encrypt the
VPN tunnel when using Manual Keying. The length of the Encryption Key
is determined by the method of encryption that is used.
For 56 bit DES the number must be 16 hexadecimal digits long.
For 56 bit ARCFour the number must be 16 hexadecimal digits long.
For 168 bit 3DES the number must be 48 hexadecimal digits long.
If the Encryption Key is less than the value stated above it will be rejected
by the Firewall. If it is longer than stated then the number will be
truncated and the stated number of digits used.
The Encryption Key is only used when Manual Keying is employed. This
field does not appear when using IKE as your IPSec Keying Mode.
Authentication Key
The Authentication Key is a hexadecimal number that is used to
authenticate the users of the VPN tunnel when using Manual Keying.The
length of the Authentication Key is always 32 digits.
If the Authentication Key is less than the value stated above it will be
rejected by the Firewall. If it is longer than stated then the number will be
truncated.
The Authentication Key is only used when Manual Keying is employed.
This field does not appear when using IKE as your IPSec Keying Mode.
Setting the
Destination Network
for the VPN Tunnel
If you are specifying a Security Association for use with VPN clients in
addition to the GroupVPN you must specify the Destination Network for
the link.
DUA1611-0AAA02.book Page 131 Thursday, August 2, 2001 4:01 PM
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