Symbol Technologies AP-5131 - Manual (Page 231)

Configuring Access Point Security 6-45
3. Configure the IKE Key Settings screen to modify the following:
Operation Mode
The Phase I protocols of IKE are based on the ISAKMP identity-
protection and aggressive exchanges. IKE main mode refers to the
identity-protection exchange, and IKE aggressive mode refers to
the aggressive exchange.
• Main - Standard IKE mode for communication and key
exchange.
• Aggressive - Aggressive mode is faster, but less secure than
Main mode. Identities are not encrypted unless public key
encryption is used. The authentication method cannot be
negotiated if the initiator chooses public key encryption