ZyXEL Communications P-661H-61, Manual

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Chapter 16 VPN
P-661HNU-Fx User’s Guide
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16.6 IPSec VPN Technical Reference
This section provides some technical background information about the topics
covered in this chapter.
16.6.1 IPSec Architecture
The overall IPSec architecture is shown as follows.
Figure 101 IPSec Architecture
IPSec Algorithms
The ESP (Encapsulating Security Payload) Protocol (RFC 2406) and AH
(Authentication Header) protocol (RFC 2402) describe the packet formats and the
default standards for packet structure (including implementation algorithms).
The Encryption Algorithm describes the use of encryption techniques such as DES
(Data Encryption Standard) and Triple DES algorithms.
Disconnect Select one of the security associations, and then click Disconnect to
stop that security association.
Refresh Click Refresh to display the current active VPN connection(s).
Table 60 Security > VPN > Monitor
LABEL DESCRIPTION