User`s guide

Chapter 20 IPSec VPN
SBG3500-N000 User’s Guide
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20.7 Technical Reference
This section provides some technical background information about the topics covered in this
chapter.
20.7.1 IPSec Architecture
The overall IPSec architecture is shown as follows.
Figure 122 IPSec Architecture
Key Enter a password (up to 15 alphanumeric characters) as the key to be shared between
the external authentication server and the SBG3500-N.
The key is not sent over the network. This key must be the same on the external
authentication server and the SBG3500-N.
Timeout Specify the timeout period (between 1 and 300 seconds) before the SBG3500-N
disconnects from the RADIUS server. In this case, user authentication fails.
Search timeout occurs when either the user information is not in the RADIUS server or
the RADIUS server is down.
Retries Specify the number of connection retries before the SBG3500-N disconnects from the
RADIUS server.
Apply Click Apply to save your changes back to the SBG3500-N.
Cancel Click Cancel to restore your previous settings.
Table 92 VPN > IPSec VPN > Radius (continued)
LABEL DESCRIPTION