Avaya 3.7 ユーザーズマニュアル

An IKE mechanism used in the first phase of establishing a security 
association. Aggressive mode accomplishes the same authentication 
negotiating goal between clients as Main mode but faster (three packets versus 
six).

In an IPSec packet, the Authentication Header (AH) and Encapsulation Security 
Payload (ESP) header. IKE VPNs authenticate IP packets using either an ESP 
header as defined in draft-ietf-ipsec-esp-v2-03.txt, or AH as defined in IETF 
draft-ietf-ipsec-auth-header-04.txt.

When a security gateway in the VPN reports an alarm condition, details about 
the alarm including type, timestamp, and the originating security gateway can 
be found in the VPNmanager main screen Alarm pane.

Generic

The process of ensuring that the data received is the same data that was sent 
from the source.

Local 

Local Authentication is used in non-dynamic VPNs (VPNs not using RADIUS or 
a directory server (LDAP) as the authentication database). Here, the user is 
authenticated from the database stored in the security gateway’s flash memory.

RADIUS 

RADIUS Authentication uses an external RADIUS server and database for user 
authentication. 

LDAP

LDAP Authentication uses the designated directory server database for user 
authentication. 

A hack attack that attempts to recover a cryptographic key by trying all 
reasonable possibilities.

Client Configuration Download. The protocol used to download the VPN 
session parameter configuration file from the security gateway to the remote 
client as part of a successful authentication when the security gateway is 
configured for Local Authentication.