Ricoh M C251FW, User Manual

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IPsec Settings
Item Description
Encapsulation Type Specify the encapsulation type from the following:
• [Transport]: 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]
8. Configuring the Machine Using Utilities
314