Select this mode to secure only the payload section of each IP packet when
communicating with IPsec compliant devices.
•
[Tunnel]
Select this mode to secure every section of each IP packet. We recommend this type for
communication between security gateways (such as VPN devices).
• [Security Protocol]
Select the security protocol from the following:
• [AH]
Establishes secure communication that supports authentication only.
• [ESP]
Establishes secure communication that supports both authentication and data encryption.
• [ESP&AH]
Establishes secure communication that supports both data encryption and authentication
of packets, including packet headers.
Note that you cannot specify this protocol when [Tunnel] is selected for [Encapsulation
Type].
• [Authentication Algorithm for AH]
Specify the authentication algorithm to be applied when [AH] or [ESP&AH] is selected for
[Security Protocol] from the following:
[MD5], [SHA1]
• [Encryption Algorithm for ESP]
Specify the encryption algorithm to be applied when [ESP] or [ESP&AH] is selected for
[Security Protocol] from the following:
[None], [DES], [3DES], [AES-128], [AES-192], [AES-256]
• [Authentication Algorithm for ESP]
Specify the authentication algorithm to be applied when [[ESP]] is selected for [[Security
Protocol]] from the following:
[[MD5]], [[SHA1]]
• [Life Time]
Specify the life time of the IPsec SA (Security Association) as a time period or data volume.
The SA will expire when the time period you specify elapses or the volume of data you specify
reaches the volume carried.
• [Key Perfect Forward Secrecy]
Select whether to enable or disable PFS (Perfect Forward Secrecy).
4. Configuring the Machine Using Utilities
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