Security level Security level features
Authentication Only
Select this level if you want to authenticate the transmission
partner and prevent unauthorized data tampering, but not
perform data packet encryption.
Since the data is sent in cleartext, data packets are vulnerable
to eavesdropping attacks. Do not select this if you are
exchanging sensitive information.
Authentication and Low Level
Encryption
Select this level if you want to encrypt the data packets as well
as authenticate the transmission partner and prevent
unauthorized packet tampering. Packet encryption helps
prevent eavesdropping attacks. This level provides less security
than "Authentication and High Level Encryption".
Authentication and High Level
Encryption
Select this level if you want to encrypt the data packets as well
as authenticate the transmission partner and prevent
unauthorized packet tampering. Packet encryption helps
prevent eavesdropping attacks. This level provides higher
security than "Authentication and Low Level Encryption".
The following table lists the settings that are automatically configured according to the security
level.
Setting Authentication Only
Authentication and Low
Level Encryption
Authentication and High
Level Encryption
Security Policy Apply Apply Apply
Encapsulation
Mode
Transport Transport Transport
IPsec Requirement
Level
Use When Possible Use When Possible Always Require
Authentication
Method
PSK PSK PSK
Phase 1 Hash
Algorithm
MD5 SHA1 SHA256
Phase 1 Encryption
Algorithm
DES 3DES AES-128-CBC
5. Enhanced Network Security
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